---
sourceDocument: Yokohama API Reference
sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/api-reference

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama API Reference

ft:clusterId :

    - crapiref

bundleId :

    - crapiref

workflow :

    - Creator


---

# Alarm Management Open API

# Alarm Management Open API {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 24 minutes to read

The Alarm Management Open API provides endpoints to create,
update, and retrieve data from the Events \[em_event\] and Alert \[em_alert\]
tables.
The telecommunications Alarm Management Open API (sn_ind_tmf642)
is a ServiceNow® implementation of the TM Forum Open API
specification. This API is based on [TMF642 Alarm Management API REST Specification
Release 20](https://www.tmforum.org/resources/specification/tmf642-alarm-management-api-user-guide-v4-0/), April 2020.

The calling user must have to access the
`sn_ind_tmf642.alarm_mgmt_integration` endpoint.

This API is provided within the `sn_ind_tmf642` namespace.

The TM Forum Open API specification requires a synchronous response for every inbound
request it receives. Apply correlation and de-duplication in the source operational
support system (OSS) before forwarding payloads to the system.

This API can be extended to make customizations around required parameters, request body validation, additional REST operations, and field mappings. For more information, see the [Alarm Management Open API
Developer Guide](https://www.servicenow.com/docs/8glOdOHobVzUJb2ID3taeQ#alarm-mgmt_dev-guide "Use the Alarm Management Open API to create and update data in the Events [em_event] table.").

The Alarm Management Open API is conformance certified by TM
Forum.

## Alarm Management Open API -- GET /sn_ind_tmf642/alarm_mgmt/alarm {#ariaid-title2}

Retrieves a list of all alarm records from the Events \[em_event\] and Alert \[em_alert\]
tables.

### URL format

Default URL:
/api/sn_ind_tmf642/alarm_mgmt/alarm

### Supported request parameters

{#alarm-GET-alarm__entry__2}

| Name | Description |
|-|-|
| None |   |
[Table 1. Path parameters]

{#alarm-GET-alarm__table_qcn_fkm_qtb__entry__2}

| Name | Description |
|-|-|
| alarmRaisedTime | Date the alarm was raised. Only alarms with a date matching the value of this parameter are returned in the response. Data type: String |
| fields | List of fields to return in the response. Invalid fields are ignored. Valid fields: * alarmedObject * alarmRaisedTime * alarmType * crossedThresholdInformation * externalAlarmId * id * perceivedSeverity * probableCause * source * sourceSystemId * state * type {#alarm-GET-alarm__ul_n1h_htz_54b} Default: All fields Data type: String |
| id | Alarm ID. Only alarms with an ID matching the value of this parameter are returned in the response. Data type: String Table: In the Message key field in the Events \[em_event\] table. |
| limit | Maximum number of records to return. For requests that exceed this number of records, use the offset parameter to paginate record retrieval. Default: 1000 Maximum: 2000 Data type: Number |
| offset | Starting index at which to begin retrieving records. Use this value to paginate record retrieval. This functionality enables the retrieval of all records, regardless of the number of records, in small manageable chunks. Data type: Number Default: 0 |
| probableCause | Probable cause of the alarm. Only alarms with a probable cause matching the value of this parameter are returned in the response. Data type: String |
| state | Alarm state. Only alarms with a state matching the value of this parameter are returned in the response. Data type: String |
| sourceSystemId | Source system ID of the alarm. Only alarms with a source system ID matching the value of this parameter are returned in the response. Data type: String |
[Table 2. Query parameters]

{#alarm-GET-alarm__table_qcn_fkm_qtb} {#alarm-GET-alarm__entry__24}

| Name | Description |
|-|-|
| None |   |
[Table 3. Request body parameters (JSON)]

### Headers

The following request and response headers apply to this HTTP
action only, or apply to this action in a distinct way. For a list of general headers used
in the REST API, see [Supported REST API headers](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-GET-alarm__table_rgh_drm_qtb__entry__2}

| Header | Description |
|-|-|
| None |   |
[Table 4. Request headers]

{#alarm-GET-alarm__table_rgh_drm_qtb} {#alarm-GET-alarm__table_c2r_4gm_lsb__entry__2}{#alarm-GET-alarm__content-range-row}{#alarm-GET-alarm__content-type-row}{#alarm-GET-alarm__links-pagination-row}{#alarm-GET-alarm__x-total-count-descr}

| Header | Description |
|-|-|
| Content-Range | Range of content returned in a paginated call. For example, if `offset=2` and `limit=3`, the value of the Content-Range header is `items 3-5`. |
| Content-Type | Data format of the response body. Only supports application/json. |
| Link | Contains the following links to navigate through query results. * first * last * next * previous {#alarm-GET-alarm__ul_zzk_sdm_lsb} |
| X-Total-Count | For paginated queries, this header specifies the total number of records available on the server. |
[Table 5. Response headers]

{#alarm-GET-alarm__table_c2r_4gm_lsb}

### Status codes

The following status codes apply to this HTTP action. For a
list of possible status codes used in the REST API, see [REST API HTTP response
codes](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-GET-alarm__table_qbg_4cm_lsb__entry__2}{#alarm-GET-alarm__tmf-get-status-200-p}{#alarm-GET-alarm__tmf-get-status-206-entry}{#alarm-GET-alarm__tmf-get-status-400-entry}{#alarm-GET-alarm__tmf-get-status-404-entry}

| Status code | Description |
|-|-|
| 200 | Request successfully processed. Full resource returned in response (no pagination). |
| 206 | Partial resource returned in response (with pagination). |
| 400 | Bad request. Possible reasons: * Invalid path parameter * Invalid URI {#alarm-GET-alarm__ul_rys_1gy_fsb} |
| 404 | Record not found. No records matching the query parameters are found in the table. |
[Table 6. Status codes]

{#alarm-GET-alarm__table_qbg_4cm_lsb}

### Response body parameters (JSON)

{#alarm-GET-alarm__table_zjc_fbg_qtb__entry__2}{#alarm-GET-alarm__alm-mgmt-affectedService-entry}{#alarm-GET-alarm__alm-mgmt-affectedServiceHREF-entry}{#alarm-GET-alarm__alm-mgmt-create-alarmobj-href-entry}{#alarm-GET-alarm__alm-mgmt-specificProb-ph}

| Name | Description |
|-|-|
| affectedService | List of one or more services affected by the alarm. Data type: Array of Objects "affectedService":[ { "href": "String", "id": "String" }, ] |
| affectedService.href | URL reference that provides details of the affected service. Data type: String |
| affectedService.id | Identifier of the service affected by the alarm. This value maps to the affected configuration item (CI) on the alert. Data type: String |
| alarmDetails | Additional details about the alarm. Data type: String |
| alarmedObject | Details of the alarm object. "alarmedObject": { "href": "String", "id": "String" } Data type: Object |
| alarmedObject.id | Unique identifier of the alarm object. This value maps to a CI in the system. Data type: String |
| alarmedObject.href | URL reference to get the details of the alarm object. Data type: String |
| alarmedObjectType | Type or class of object associated with the event. Data type: String |
| alarmRaisedTime | Date and time at which the alarm occurs at its source. Data type: String |
| alarmReportingTime | Date and time at which the OSS reports its alarm. This value might differ from the alarmRaisedTime value. For example, if an element management system (EMS) maintains the alarm list: * The alarmRaisedTime is the time of alarm detection by the network element (NE). * The alarmReportingTime is the alarm report time of storage in the EMS alarm list. {#alarm-GET-alarm__ul_mbt_1rf_ynb} Data type: String |
| alarmType | Alarm category. Data type: String |
| crossedThresholdInformation | Details about the crossed threshold. Data type: Object "crossedThresholdInformation": { "direction": "String", "granularity": "String", "indicatorName": "String", "indicatorUnit": "String", "observedValue": "String", "thresholdCrossingDescription": "String", "thresholdId": "String", "thresholdRef": "String" } |
| crossedThresholdInformation.direction | Threshold crossing direction. Valid values: * DOWN * UP {#alarm-GET-alarm__ul_fsb_jlg_ynb} Data type: String |
| crossedThresholdInformation.granularity | Granularity at which the indicator is evaluated for threshold crossing. For example, `5MINUTES`. Data type: String |
| crossedThresholdInformation.indicatorName | Name of the indicator that crosses the alarm threshold. Data type: String |
| crossedThresholdInformation.indicatorUnit | Measurement unit of the indicator corresponding to the crossed threshold. Data type: String |
| crossedThresholdInformation.observedValue | Number identifying the indicator crossing the threshold. Data type: String |
| crossedThresholdInformation.thresholdCrossingDescription | More threshold details of the threshold crossing alarm. Data type: String |
| crossedThresholdInformation.thresholdId | Unique identifier of the threshold that caused the alarm. Data type: String |
| crossedThresholdInformation.thresholdRef | URL of the threshold object. Data type: String |
| externalAlarmId | Unique identifier for the alarm from the source system posting the alarm. Data type: String |
| href | URL of the resource. Data type: String |
| id | Unique identifier for the system to identify and process the alarm payload as an event. Data type: String |
| perceivedSeverity | Alarm severity. Valid values: * CLEAR * CRITICAL * MAJOR * MINOR * WARNING {#alarm-GET-alarm__ul_vcp_c4f_ynb} Data type: String |
| plannedOutageIndication | Indicates that the managed object for this alarm is in a planned outage state. For example, planned maintenance or out-of-service. Data type: String |
| probableCause | Most likely situation to trigger the alarm. Use with alarmType to qualify the alarm. Data type: String |
| proposedRepairActions | If available to the system, provides a repair action to resolve the issue that triggers the alarm. Data type: String |
| serviceAffecting | Flag that indicates whether the alarm affects service. Valid values: * true: Alarm affects service performance or availability. * false: Alarm doesn't affect service. {#alarm-GET-alarm__ul_omz_dnf_ynb} Default: false Data type: Boolean |
| sourceSystemId | Instance ID of the source alarm. Data type: String |
| specificProblem | Specific problem that triggers the alarm. Use with the probableCause tparameter o qualify the alarm. Data type: String |
| state | Alarm state. Valid values: * Error * Ignored * Ready * Processed {#alarm-GET-alarm__ul_ilh_3jt_xnb}If an invalid value is provided, the state is set to `Ready`. If the state is `Ready`, an alert is created in the Alert \[em_alert\] table and the state then becomes `Processed`. If the state is `Processed`, `Ignored`, or `Error` no alert is created. Default value: Ready Data type: String |
[ ]

{#alarm-GET-alarm__table_zjc_fbg_qtb}  

### cURL request

This example retrieves all alarms.

    curl "https://instance.servicenow.com/api/sn_ind_tmf642/alarm_mgmt/alarm" \
    --request GET \
    --header "Accept:application/json" \
    --user 'username':'password'

Response body.

    [
       {
          "externalAlarmId": "2212331",
          "alarmType": "QualityOfServiceAlarm23",
          "perceivedSeverity": "MAJOR",
          "probableCause": "ProbB",
          "sourceSystemId": "checkSB",
          "alarmedObject": {
             "id": "vManage_000000",
             "href": " http://api/alarmedobject/000000"
          },
          "crossedThresholdInformation": {
             "direction": "111",
             "granularity": "1234",
             "indicatorName": "sdfgds",
             "indicatorUnit": "asdfdsaf",
             "observedValue": "adsfds",
             "thresholdId": "12fasdfasdfasd",
             "thresholdCrossingDescription": "S23rtring",
             "thresholdRef": "asdfasf"
          },
          "type": "QualityOfServiceAlarm",
          "ackState": "acknowledged",
          "specificProblem": "Inbound Traffic threshold crossed",
          "alarmedObjectType": "ROUTER",
          "alarmDetails": "Software Failure on SD-WAN Controller vManage_000000",
          "state": "processed",
          "alarmChangedTime": "2017-08-15T07:04:15.666Z",
          "proposedRepairActions": "Switch in standby equipment",
          "alarmReportingTime": "2017-06-15T07:04:15.666Z",
          "alarmRaisedTime": "2020-09-15T14:04:15.000Z",
          "plannedOutageIndication": "IN_SERVICE",
          "serviceAffecting": true,
          "affectedService": [
             {
                "id": "SD WAN Enterprise Solutions",
                "href": "http://api/service/vlan_dot0_dot0"
             },
             {
                "id": "Santa Clara SD WAN Application Service",
                "href": "http://api/service/vlan_dot0_dot0"
             }
          ],
          "source": "Alarm Management Open API",
          "href": "/api/sn_ind_tmf642/alarm_mgmt/alarm/001a0ca629078d10f87759e2f69e4c64_2212331",
          "id": "001a0ca629078d10f87759e2f69e4c64_2212331"
       },
       {
          "externalAlarmId": "2212331",
          "alarmType": "QualityOfServiceAlarm23",
          "perceivedSeverity": "MAJOR",
          "probableCause": "ProbB",
          "sourceSystemId": "checkSB",
          "alarmedObject": {
             "id": "vManage_000000",
             "href": " http://api/alarmedobject/000000"
          },
          "crossedThresholdInformation": {
             "direction": "111",
             "granularity": "1234",
             "indicatorName": "sdfgds",
             "indicatorUnit": "asdfdsaf",
             "observedValue": "adsfds",
             "thresholdId": "12fasdfasdfasd",
             "thresholdCrossingDescription": "S23rtring",
             "thresholdRef": "asdfasf"
          },
          "type": "QualityOfServiceAlarm",
          "ackState": "acknowledged",
          "specificProblem": "Inbound Traffic threshold crossed",
          "alarmedObjectType": "ROUTER",
          "alarmDetails": "Software Failure on SD-WAN Controller vManage_000000",
          "state": "processed",
          "alarmChangedTime": "2017-08-15T07:04:15.666Z",
          "proposedRepairActions": "Switch in standby equipment",
          "alarmReportingTime": "2017-06-15T07:04:15.666Z",
          "alarmRaisedTime": "2020-09-15T14:04:15.000Z",
          "plannedOutageIndication": "IN_SERVICE",
          "serviceAffecting": true,
          "affectedService": [
             {
                "id": "SD WAN Enterprise Solutions",
                "href": "http://api/service/vlan_dot0_dot0"
             },
             {
                "id": "Santa Clara SD WAN Application Service",
                "href": "http://api/service/vlan_dot0_dot0"
             }
          ],
          "source": "Alarm Management Open API",
          "href": "/api/sn_ind_tmf642/alarm_mgmt/alarm/001c84aa29078d10f87759e2f69e4cfa_2212331",
          "id": "001c84aa29078d10f87759e2f69e4cfa_2212331"
       }
    ]

## Alarm Management Open API -- GET /sn_ind_tmf642/alarm_mgmt/alarm/{id} {#ariaid-title3}

Retrieves a specified alarm record from the Events \[em_event\] or Alert \[em_alert\]
table.

### URL format

Default URL:
/api/sn_ind_tmf642/alarm_mgmt/alarm/{id}

### Supported request parameters

{#alarm-GET-alarm-id__entry__2}

| Name | Description |
|-|-|
| id | Unique identifier of the record to retrieve. Data type: String Table: In the Message key field of the Events \[em_event\] table. |
[Table 7. Path parameters]

{#alarm-GET-alarm-id__entry__6}

| Name | Description |
|-|-|
| fields | List of fields to return in the response. Invalid fields are ignored. Valid fields: * alarmedObject * alarmRaisedTime * alarmType * crossedThresholdInformation * externalAlarmId * id * perceivedSeverity * probableCause * source * sourceSystemId * state * type {#alarm-GET-alarm-id__ul_n1h_htz_54b} Default value: All fields Data type: String |
[Table 8. Query parameters]

{#alarm-GET-alarm-id__entry__10}

| Name | Description |
|-|-|
| None |   |
[Table 9. Request body parameters (JSON)]

### Headers

The following request and response headers apply to this HTTP
action only, or apply to this action in a distinct way. For a list of general headers used
in the REST API, see [Supported REST API headers](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-GET-alarm-id__entry__14}{#alarm-GET-alarm-id__accept-JSON-only-entry-RESTAPI}

| Header | Description |
|-|-|
| Accept | Data format of the response body. Only supports application/json. |
[Table 10. Request headers]

{#alarm-GET-alarm-id__entry__18}

| Header | Description |
|-|-|
| None |   |
[Table 11. Response headers]

### Status codes

The following status codes apply to this HTTP action. For a
list of possible status codes used in the REST API, see [REST API HTTP response
codes](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-GET-alarm-id__entry__22}{#alarm-GET-alarm-id__entry-200-status-code}

| Status code | Description |
|-|-|
| 200 | Successful. The request was successfully processed. |
| 400 | Bad Request. A bad request type or malformed request was detected for one or more of the following reasons. * Invalid path parameter. * Invalid URI. {#alarm-GET-alarm-id__ul_rjf_fqw_rpb} |
| 404 | Record not found. A record associated with the specified ID is not found in the Event \[em_event\] or Alert \[em_alert\] table. |
[Table 12. Status codes]

### Response body parameters (JSON)

{#alarm-GET-alarm-id__table_gtd_dbg_qtb__entry__2}{#alarm-GET-alarm-id__alm-mgmt-affectedService-entry}{#alarm-GET-alarm-id__alm-mgmt-affectedServiceHREF-entry}{#alarm-GET-alarm-id__alm-mgmt-create-alarmobj-href-entry}{#alarm-GET-alarm-id__alm-mgmt-specificProb-ph}

| Name | Description |
|-|-|
| affectedService | List of one or more services affected by the alarm. Data type: Array of Objects "affectedService":[ { "href": "String", "id": "String" }, ] |
| affectedService.href | URL reference that provides details of the affected service. Data type: String |
| affectedService.id | Identifier of the service affected by the alarm. This value maps to the affected configuration item (CI) on the alert. Data type: String |
| alarmDetails | Additional details about the alarm. Data type: String |
| alarmedObject | Details of the alarm object. Data type: Object "alarmedObject": { "href": "String", "id": "String" } |
| alarmedObject.id | Unique identifier of the alarm object. This value maps to a CI in the system. Data type: String |
| alarmedObject.href | URL reference to get the details of the alarm object. Data type: String |
| alarmedObjectType | Type or class of object associated with the event. Data type: String |
| alarmRaisedTime | Date and time at which the alarm occurs at its source. Data type: String |
| alarmReportingTime | Date and time at which the OSS reports its alarm. This value might differ from the alarmRaisedTime value. For example, if an element management system (EMS) maintains the alarm list: * The alarmRaisedTime is the time of alarm detection by the network element (NE). * The alarmReportingTime is the alarm report time of storage in the EMS alarm list. {#alarm-GET-alarm-id__ul_mbt_1rf_ynb} Data type: String |
| alarmType | Alarm category. Data type: String |
| crossedThresholdInformation | Details about the crossed threshold. Data type: Object "crossedThresholdInformation": { "direction": "String", "granularity": "String", "indicatorName": "String", "indicatorUnit": "String", "observedValue": "String", "thresholdCrossingDescription": "String", "thresholdId": "String", "thresholdRef": "String" } |
| crossedThresholdInformation.direction | Threshold crossing direction. Valid values: * DOWN * UP {#alarm-GET-alarm-id__ul_fsb_jlg_ynb} Data type: String |
| crossedThresholdInformation.granularity | Granularity at which the indicator is evaluated for threshold crossing. For example, `5MINUTES`. Data type: String |
| crossedThresholdInformation.indicatorName | Name of the indicator that crosses the alarm threshold. Data type: String |
| crossedThresholdInformation.indicatorUnit | Measurement unit of the indicator corresponding to the crossed threshold. Data type: String |
| crossedThresholdInformation.observedValue | Number identifying the indicator crossing the threshold. Data type: String |
| crossedThresholdInformation.thresholdCrossingDescription | More threshold details of the threshold crossing alarm. Data type: String |
| crossedThresholdInformation.thresholdId | Unique identifier of the threshold that caused the alarm. Data type: String |
| crossedThresholdInformation.thresholdRef | URL of the threshold object. Data type: String |
| externalAlarmId | Unique identifier for the alarm from the source system posting the alarm. Data type: String |
| href | URL of the resource. Data type: String |
| id | Unique identifier for the system to identify and process the alarm payload as an event. Data type: String |
| perceivedSeverity | Alarm severity. Valid values: * CLEAR * CRITICAL * MAJOR * MINOR * WARNING {#alarm-GET-alarm-id__ul_vcp_c4f_ynb} Data type: String |
| plannedOutageIndication | Indicates that the managed object for this alarm is in a planned outage state. For example, planned maintenance or out-of-service. Data type: String |
| probableCause | Most likely situation to trigger the alarm. Use with alarmType to qualify the alarm. Data type: String |
| proposedRepairActions | If available to the system, provides a repair action to resolve the issue that triggers the alarm. Data type: String |
| serviceAffecting | Flag that indicates whether the alarm affects service. Valid values: * true: Alarm affects service performance or availability. * false: Alarm doesn't affect service. {#alarm-GET-alarm-id__ul_omz_dnf_ynb} Default: false Data type: Boolean |
| sourceSystemId | Instance ID of the source alarm. Data type: String |
| specificProblem | Specific problem that triggers the alarm. Use with the probableCause tparameter o qualify the alarm. Data type: String |
| state | Alarm state. Valid values: * Error * Ignored * Ready * Processed {#alarm-GET-alarm-id__ul_ilh_3jt_xnb}If an invalid value is provided, the state is set to `Ready`. If the state is `Ready`, an alert is created in the Alert \[em_alert\] table and the state then becomes `Processed`. If the state is `Processed`, `Ignored`, or `Error` no alert is created. Default value: Ready Data type: String |
[ ]

{#alarm-GET-alarm-id__table_gtd_dbg_qtb}  

### cURL request

This example retrieves an alarm.

    curl "https://instance.servicenow.com/api/sn_ind_tmf642/alarm_mgmt/alarm/001a0ca629078d10f87759e2f69e4c64_2212331" \
    --request GET \
    --header "Accept:application/json" \
    --user 'username':'password'

Response body.

    {
       "externalAlarmId": "2212331",
       "alarmType": "QualityOfServiceAlarm23",
       "perceivedSeverity": "MAJOR",
       "probableCause": "ProbB",
       "sourceSystemId": "checkSB",
       "alarmedObject": {
          "id": "vManage_000000",
          "href": " http://api/alarmedobject/000000"
       },
       "crossedThresholdInformation": {
          "direction": "111",
          "granularity": "1234",
          "indicatorName": "ind_name",
          "indicatorUnit": "ind_unit",
          "observedValue": "232",
          "thresholdId": "200",
          "thresholdCrossingDescription": "sample_description",
          "thresholdRef": "sample_ref"
       },
       "type": "QualityOfServiceAlarm",
       "ackState": "acknowledged",
       "specificProblem": "Inbound Traffic threshold crossed",
       "alarmedObjectType": "ROUTER",
       "alarmDetails": "Software Failure on SD-WAN Controller vManage_000000",
       "state": "processed",
       "alarmChangedTime": "2017-08-15T07:04:15.666Z",
       "proposedRepairActions": "Switch in standby equipment",
       "alarmReportingTime": "2017-06-15T07:04:15.666Z",
       "alarmRaisedTime": "2020-09-15T14:04:15.000Z",
       "plannedOutageIndication": "IN_SERVICE",
       "serviceAffecting": true,
       "affectedService": [
          {
             "id": "SD WAN Enterprise Solutions",
             "href": "http://api/service/vlan_dot0_dot0"
          },
          {
             "id": "Santa Clara SD WAN Application Service",
             "href": "http://api/service/vlan_dot0_dot0"
          }
       ],
       "source": "Alarm Management Open API",
       "href": "/api/sn_ind_tmf642/alarm_mgmt/alarm/001a0ca629078d10f87759e2f69e4c64_2212331",
       "id": "001a0ca629078d10f87759e2f69e4c64_2212331"
    }

## Alarm Management Open API -- PATCH /sn_ind_tmf642/alarm_mgmt/alarm/{id} {#ariaid-title4}

Updates a specified alarm and any associated alert.
This endpoint writes the response body to the
Additional Info field of the event record in the Events \[em_event\]
table.

### URL format

Default URL:
/api/sn_ind_tmf642/alarm_mgmt/alarm/{id}

### Supported request parameters

{#alarm-PATCH__entry__2}

| Name | Description |
|-|-|
| id | Unique identifier of the record to update. Data type: String Table: In the Message key field of the Events \[em_event\] table. |
[Table 13. Path parameters]

{#alarm-PATCH__entry__6}

| Name | Description |
|-|-|
| None |   |
[Table 14. Query parameters]

{#alarm-PATCH__table_kmr_mjs_xnb__entry__2}{#alarm-PATCH__alm-mgmt-affectedService-entry}{#alarm-PATCH__alm-mgmt-affectedServiceHREF-entry}{#alarm-PATCH__alm-mgmt-perceivedSeverity-desc}{#alarm-PATCH__alm-mgmt-specificProb-ph}

| Name | Description |
|-|-|
| affectedService | List of one or more services affected by the alarm. Data type: Array of Objects "affectedService":[ { "href": "String", "id": "String" }, ] |
| affectedService.href | URL reference that provides details of the affected service. Data type: String |
| affectedService.id | Required. Identifier of the service affected by the alarm. This value maps to the affected configuration item (CI) on the alert. Data type: String |
| alarmChangedTime | Indicates the last date and time the alarm changed on the alarm-owning system. Any change to the alarm updates this value whether coming from the alarmed resource or triggered by a change from the client. Data type: String |
| alarmDetails | Additional details about the alarm. Data type: String |
| alarmEscalation | Flag that indicates an escalation in alarm severity. Valid values: * true: There is an escalation in alarm severity. * false: The alarm severity is the same or lower. {#alarm-PATCH__ul_kkj_4jh_ynb} Default: false Data type: Boolean |
| crossedThresholdInformation | Details about the crossed threshold. Data type: Object "crossedThresholdInformation": { "direction": "String", "granularity": "String", "indicatorName": "String", "indicatorUnit": "String", "observedValue": "String", "thresholdCrossingDescription": "String", "thresholdId": "String", "thresholdRef": "String" } |
| crossedThresholdInformation.direction | Threshold crossing direction. Valid values: * DOWN * UP {#alarm-PATCH__ul_fsb_jlg_ynb} Data type: String |
| crossedThresholdInformation.granularity | Granularity at which the indicator is evaluated for threshold crossing. For example, `5MINUTES`. Data type: String |
| crossedThresholdInformation.indicatorName | Name of the indicator that crosses the alarm threshold. Data type: String |
| crossedThresholdInformation.indicatorUnit | Measurement unit of the indicator corresponding to the crossed threshold. Data type: String |
| crossedThresholdInformation.observedValue | Number identifying the indicator crossing the threshold. Data type: String |
| crossedThresholdInformation.thresholdCrossingDescription | More threshold details of the threshold crossing alarm. Data type: String |
| crossedThresholdInformation.thresholdId | Required. Unique identifier of the threshold that caused the alarm. Data type: String |
| crossedThresholdInformation.thresholdRef | URL of the threshold object. Data type: String |
| href | URL reference to the alarm. Data type: String |
| perceivedSeverity | Required. Alarm severity. Valid values: * CLEAR * CRITICAL * MAJOR * MINOR * WARNING {#alarm-PATCH__ul_vcp_c4f_ynb} Data type: String |
| plannedOutageIndication | Indicates that the managed object for this alarm is in a planned outage state. For example, planned maintenance or out-of-service. Data type: String |
| probableCause | Required. Most likely situation to trigger the alarm. Use with alarmType to qualify the alarm. Data type: String |
| proposedRepairActions | If available to the system, provides a repair action to resolve the issue that triggers the alarm. Data type: String |
| serviceAffecting | Flag that indicates whether the alarm affects service. Valid values: * true: Alarm affects service performance or availability. * false: Alarm doesn't affect service. {#alarm-PATCH__ul_omz_dnf_ynb} Default: false Data type: Boolean |
| specificProblem | Specific problem that triggers the alarm. Use with the probableCause tparameter o qualify the alarm. Data type: String |
[Table 15. Request body parameters (JSON)]

{#alarm-PATCH__table_kmr_mjs_xnb}

### Headers

The following request and response headers apply to this HTTP
action only, or apply to this action in a distinct way. For a list of general headers used
in the REST API, see [Supported REST API headers](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-PATCH__entry__56}{#alarm-PATCH__accept-JSON-only-entry-RESTAPI}{#alarm-PATCH__content_type-JSON-only-entry-RESTAPI}

| Header | Description |
|-|-|
| Accept | Data format of the response body. Only supports application/json. |
| Content-Type | Data format of the request body. Only supports application/json. |
[Table 16. Request headers]

{#alarm-PATCH__table_jwc_bxs_xnb__entry__2}

| Header | Description |
|-|-|
| None |   |
[Table 17. Response headers]

{#alarm-PATCH__table_jwc_bxs_xnb}

### Status codes

The following status codes apply to this HTTP action. For a
list of possible status codes used in the REST API, see [REST API HTTP response
codes](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-PATCH__table_ifj_lyb_ynb__entry__2}

| Status code | Description |
|-|-|
| 201 | Successful. The request was successfully processed. |
| 400 | Bad request. Possible reasons: * Invalid payload. Missing required alarm ID. * Invalid payload. Required field missing:\<field name\>. * Invalid payload. Missing required object. * Event not created, failed. * Unable to clear event. * Unable to update event. * The event doesn't exist. {#alarm-PATCH__ul_f4x_sdb_ynb} |
[Table 18. Status codes]

{#alarm-PATCH__table_ifj_lyb_ynb}

### Response body parameters (JSON)

{#alarm-PATCH__entry__72}

| Name | Description |
|-|-|
| alarmChangedTime | Date and time the alarm changed in GMT on the alarm-owning system. This value updates when changes to the alarm from the alarmed resource occur or a change from a client update triggers the alarm. This value is required in the response. Data type: String |
| href | URL reference to the alarm. Data type: String |
| id | Unique identifier of the alarm. Value determined by the system owning the alarm. Data type: String |
[ ]

### cURL request

In this example, the severity is reduced to MINOR.

    curl "https://<instance>.service-now.com/api/sn_ind_tmf642/alarm_mgmt/alarm/6e116bb8db09201087b9a8394b961950_<external-alarm-id>" \
    --request PATCH \
    --header "Accept:application/json" \
    --header "Content-Type:application/json" \
    --data "{
         \"href\":\"http://api/alarm/ROUTER_IF@Cisco-0000-0-0-0-0-00-00-0-- Xz0/00@00\",
         \"externalAlarmId\":\"<external-alarm-id>\",
         \"alarmType\":\"QualityOfServiceAlarm\",
         \"type\":\"QualityOfServiceAlarm\",
         \"ackState\":\"acknowledged\",
         \"perceivedSeverity\":\"MINOR\",
         \"probableCause\":\"Threshold crossed\",
         \"specificProblem\":\"Inbound Traffic threshold crossed\",
         \"alarmedObjectType\":\"ROUTER\",
         \"alarmedObject\":{
            \"id\":\"vManage_000000\",
            \"href\":\" http://api/alarmedobject/000000\"
         },
         \"sourceSystemId\":\"SOURCE_SYSTEM_vManage_00000_000_00\",
         \"alarmDetails\":\"Software Failure on SD-WAN Controller vManage_000000\",
         \"alarmEscalation\": false,
         \"state\":\"RAISED\",
         \"alarmChangedTime\":\"2017-08-15T07:04:15.666Z\",
         \"proposedRepairActions\":\"Switch in standby equipment\",
         \"alarmReportingTime\":\"2017-06-15T07:04:15.666Z\",
         \"alarmRaisedTime\":\"2020-09-15T07:04:15.666Z\",
         \"plannedOutageIndication\":\"IN_SERVICE\",
         \"serviceAffecting\":true,
         \"affectedService\":[
            {
               \"id\":\"SD WAN Enterprise Solutions\",
               \"href\":\"http://api/service/vlan_dot0_dot0\"
            },
            {
               \"id\":\"Santa Clara SD WAN Application Service\",
               \"href\":\"http://api/service/vlan_dot0_dot0\"
            }
         ] 
     }" \
    --user 'user:'password'

Response body.

    {
      "result": {
        "alarmChangedTime": "2017-08-15T07:04:15.666Z",
        "id": "6e116bb8db09201087b9a8394b961950_<external-alarm-id>"
      }
    }

## Alarm Management Open API -- POST /sn_ind_tmf642/alarm_mgmt/alarm {#ariaid-title5}

Creates an alarm record in the Events \[em_event\] table.
When the alarm record is created, an ID for the alarm is added in the Message key field.

An alert record might also be created based on [Alert management rules](https://www.servicenow.com/docs/access?context=alert-management-rule&version=yokohama&pubname=yokohama-it-operations-management&ft:locale=en-US).

This endpoint writes the response body to the
Additional Info field of the event record in the Events \[em_event\]
table.

### URL format

Default URL:
/api/sn_ind_tmf642/alarm_mgmt/alarm

### Supported request parameters

{#alarm-POST-create__entry__2}

| Name | Description |
|-|-|
| None |   |
[Table 19. Path parameters]

{#alarm-POST-create__entry__6}

| Name | Description |
|-|-|
| None |   |
[Table 20. Query parameters]

{#alarm-POST-create__entry__10}{#alarm-POST-create__alm-mgmt-affectedService-entry}{#alarm-POST-create__alm-mgmt-affectedServiceHREF-entry}{#alarm-POST-create__alm-mgmt-create-alarmobj-href-entry}{#alarm-POST-create__alm-mgmt-create-alarmtype}{#alarm-POST-create__alm-mgmt-perceivedSeverity-desc}{#alarm-POST-create__alm-mgmt-specificProb-ph}

| Name | Description |
|-|-|
| affectedService | List of one or more services affected by the alarm. Data type: Array of Objects "affectedService":[ { "href": "String", "id": "String" }, ] |
| affectedService.href | URL reference that provides details of the affected service. Data type: String |
| affectedService.id | Required. Identifier of the service affected by the alarm. This value maps to the affected configuration item (CI) on the alert. Data type: String |
| alarmDetails | Additional details about the alarm. Data type: String |
| alarmedObject | Required. Details of the alarm object. "alarmedObject": { "href": "String", "id": "String" } Data type: Object |
| alarmedObject.id | Required. Unique identifier of the alarm object. This value maps to a CI in the system. Data type: String |
| alarmedObject.href | URL reference to get the details of the alarm object. Data type: String |
| alarmedObjectType | Type or class of object associated with the event. Data type: String |
| alarmRaisedTime | Date and time at which the alarm occurs at its source. Data type: String |
| alarmReportingTime | Date and time at which the OSS reports its alarm. This value might differ from the alarmRaisedTime value. For example, if an element management system (EMS) maintains the alarm list: * The alarmRaisedTime is the time of alarm detection by the network element (NE). * The alarmReportingTime is the alarm report time of storage in the EMS alarm list. {#alarm-POST-create__ul_mbt_1rf_ynb} Data type: String |
| alarmType | Required. Alarm category. Data type: String |
| crossedThresholdInformation | Details about the crossed threshold. Data type: Object "crossedThresholdInformation": { "direction": "String", "granularity": "String", "indicatorName": "String", "indicatorUnit": "String", "observedValue": "String", "thresholdCrossingDescription": "String", "thresholdId": "String", "thresholdRef": "String" } |
| crossedThresholdInformation.direction | Threshold crossing direction. Valid values: * DOWN * UP {#alarm-POST-create__ul_fsb_jlg_ynb} Data type: String |
| crossedThresholdInformation.granularity | Granularity at which the indicator is evaluated for threshold crossing. For example, `5MINUTES`. Data type: String |
| crossedThresholdInformation.indicatorName | Name of the indicator that crosses the alarm threshold. Data type: String |
| crossedThresholdInformation.indicatorUnit | Measurement unit of the indicator corresponding to the crossed threshold. Data type: String |
| crossedThresholdInformation.observedValue | Number identifying the indicator crossing the threshold. Data type: String |
| crossedThresholdInformation.thresholdCrossingDescription | More threshold details of the threshold crossing alarm. Data type: String |
| crossedThresholdInformation.thresholdId | Required. Unique identifier of the threshold that caused the alarm. Data type: String |
| crossedThresholdInformation.thresholdRef | URL of the threshold object. Data type: String |
| externalAlarmId | Required. Unique identifier for the alarm from the source system posting the alarm. Data type: String |
| id | Unique identifier for the system to identify and process the alarm payload as an event. This value must be empty if used in the payload. The system generates this unique ID for the event and sends it as part of the response payload. Data type: String |
| perceivedSeverity | Required. Alarm severity. Valid values: * CLEAR * CRITICAL * MAJOR * MINOR * WARNING {#alarm-POST-create__ul_vcp_c4f_ynb} Data type: String |
| plannedOutageIndication | Indicates that the managed object for this alarm is in a planned outage state. For example, planned maintenance or out-of-service. Data type: String |
| probableCause | Required. Most likely situation to trigger the alarm. Use with alarmType to qualify the alarm. Data type: String |
| proposedRepairActions | If available to the system, provides a repair action to resolve the issue that triggers the alarm. Data type: String |
| serviceAffecting | Flag that indicates whether the alarm affects service. Valid values: * true: Alarm affects service performance or availability. * false: Alarm doesn't affect service. {#alarm-POST-create__ul_omz_dnf_ynb} Default: false Data type: Boolean |
| sourceSystemId | Required. Instance ID of the source alarm. Data type: String |
| specificProblem | Specific problem that triggers the alarm. Use with the probableCause tparameter o qualify the alarm. Data type: String |
| state | Alarm state. Valid values: * Error * Ignored * Ready * Processed {#alarm-POST-create__ul_ilh_3jt_xnb}If an invalid value is provided, the state is set to `Ready`. If the state is `Ready`, an alert is created in the Alert \[em_alert\] table and the state then becomes `Processed`. If the state is `Processed`, `Ignored`, or `Error` no alert is created. Default value: Ready Data type: String |
[Table 21. Request body parameters (JSON)]

### Headers

The following request and response headers apply to this HTTP
action only, or apply to this action in a distinct way. For a list of general headers used
in the REST API, see [Supported REST API headers](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-POST-create__entry__72}{#alarm-POST-create__accept-JSON-only-entry-RESTAPI}{#alarm-POST-create__content_type-JSON-only-entry-RESTAPI}

| Header | Description |
|-|-|
| Accept | Data format of the response body. Only supports application/json. |
| Content-Type | Data format of the request body. Only supports application/json. |
[Table 22. Request headers]

{#alarm-POST-create__table_vrm_1xs_xnb__entry__2}

| Header | Description |
|-|-|
| None |   |
[Table 23. Response headers]

{#alarm-POST-create__table_vrm_1xs_xnb}

### Status codes

The following status codes apply to this HTTP action. For a
list of possible status codes used in the REST API, see [REST API HTTP response
codes](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-POST-create__table_bly_lyb_ynb__entry__2}

| Status code | Description |
|-|-|
| 201 | Successful. The request was successfully processed. |
| 400 | Bad request. Possible reasons: * Invalid payload. Missing required alarm ID. * Invalid payload. Required field missing:\<field name\>. * Invalid payload. Missing required object. * Event not created, failed. * Unable to clear event. * Unable to update event. * The event doesn't exist. {#alarm-POST-create__ul_f4x_sdb_ynb} |
[Table 24. Status codes]

{#alarm-POST-create__table_bly_lyb_ynb}

### Response body parameters (JSON)

{#alarm-POST-create__entry__88}{#alarm-POST-create__d3087e76}{#alarm-POST-create__d3087e89}{#alarm-POST-create__d3087e404}{#alarm-POST-create__d3087e343}

| Name | Description |
|-|-|
| affectedService | List of one or more services affected by the alarm. Data type: Array of Objects "affectedService":[ { "href": "String", "id": "String" }, ] |
| affectedService.href | URL reference that provides details of the affected service. Data type: String |
| affectedService.id | Identifier of the service affected by the alarm. This value maps to the affected configuration item (CI) on the alert. Data type: String |
| alarmDetails | Additional details about the alarm. Data type: String |
| alarmedObject | Details of the alarm object. "alarmedObject": { "href": "String", "id": "String" } Data type: Object |
| alarmedObject.id | Unique identifier of the alarm object. This value maps to a CI in the system. Data type: String |
| alarmedObject.href | URL reference to get the details of the alarm object. Data type: String |
| alarmedObjectType | Type or class of object associated with the event. Data type: String |
| alarmRaisedTime | Date and time at which the alarm occurs at its source. Data type: String |
| alarmReportingTime | Date and time at which the OSS reports its alarm. This value might differ from the alarmRaisedTime value. For example, if an element management system (EMS) maintains the alarm list: * The alarmRaisedTime is the time of alarm detection by the network element (NE). * The alarmReportingTime is the alarm report time of storage in the EMS alarm list. {#alarm-POST-create__d3087e460} Data type: String |
| alarmType | Alarm category. Data type: String |
| crossedThresholdInformation | Details about the crossed threshold. Data type: Object "crossedThresholdInformation": { "direction": "String", "granularity": "String", "indicatorName": "String", "indicatorUnit": "String", "observedValue": "String", "thresholdCrossingDescription": "String", "thresholdId": "String", "thresholdRef": "String" } |
| crossedThresholdInformation.direction | Threshold crossing direction. Valid values: * DOWN * UP {#alarm-POST-create__d3087e144} Data type: String |
| crossedThresholdInformation.granularity | Granularity at which the indicator is evaluated for threshold crossing. For example, `5MINUTES`. Data type: String |
| crossedThresholdInformation.indicatorName | Name of the indicator that crosses the alarm threshold. Data type: String |
| crossedThresholdInformation.indicatorUnit | Measurement unit of the indicator corresponding to the crossed threshold. Data type: String |
| crossedThresholdInformation.observedValue | Number identifying the indicator crossing the threshold. Data type: String |
| crossedThresholdInformation.thresholdCrossingDescription | More threshold details of the threshold crossing alarm. Data type: String |
| crossedThresholdInformation.thresholdId | Unique identifier of the threshold that caused the alarm. Data type: String |
| crossedThresholdInformation.thresholdRef | URL of the threshold object. Data type: String |
| externalAlarmId | Unique identifier for the alarm from the source system posting the alarm. Data type: String |
| href | URL of the resource. Data type: String |
| id | Unique identifier for the system to identify and process the alarm payload as an event. Data type: String |
| perceivedSeverity | Alarm severity. Valid values: * CLEAR * CRITICAL * MAJOR * MINOR * WARNING {#alarm-POST-create__d3087e253} Data type: String |
| plannedOutageIndication | Indicates that the managed object for this alarm is in a planned outage state. For example, planned maintenance or out-of-service. Data type: String |
| probableCause | Most likely situation to trigger the alarm. Use with alarmType to qualify the alarm. Data type: String |
| proposedRepairActions | If available to the system, provides a repair action to resolve the issue that triggers the alarm. Data type: String |
| serviceAffecting | Flag that indicates whether the alarm affects service. Valid values: * true: Alarm affects service performance or availability. * false: Alarm doesn't affect service. {#alarm-POST-create__d3087e323} Default: false Data type: Boolean |
| sourceSystemId | Instance ID of the source alarm. Data type: String |
| specificProblem | Specific problem that triggers the alarm. Use with the probableCause tparameter o qualify the alarm. Data type: String |
| state | Alarm state. Valid values: * Error * Ignored * Ready * Processed {#alarm-POST-create__d3087e541}If an invalid value is provided, the state is set to `Ready`. If the state is `Ready`, an alert is created in the Alert \[em_alert\] table and the state then becomes `Processed`. If the state is `Processed`, `Ignored`, or `Error` no alert is created. Default value: Ready Data type: String |
[ ]

### cURL request

This example creates an alarm.

    curl "https://<instance>.service-now.com/api/sn_ind_tmf642/alarm_mgmt/alarm" \
    --request POST \
    --header "Accept:application/json" \
    --header "Content-Type:application/json" \
    --data "{
         "href":"http://api/alarm/ROUTER_IF@Cisco-0000-0-0-0-0-00-00-0-- Xz0/00@00",
         "externalAlarmId":"<external-alarm-id>",
         "alarmType":"QualityOfServiceAlarm",
         "type":"QualityOfServiceAlarm",
         "ackState":"acknowledged",
         "perceivedSeverity":"CRITICAL",
         "probableCause":"Threshold crossed",
         "specificProblem":"Inbound Traffic threshold crossed",
         "alarmedObjectType":"ROUTER",
         "alarmedObject":{
            "id":"vManage_000000",
            "href":" http://api/alarmedobject/000000"
         },
         "sourceSystemId":"SOURCE_SYSTEM_vManage_00000_000_00",
         "alarmDetails":"Software Failure on SD-WAN Controller vManage_000000",
         "state":"RAISED",
         "alarmChangedTime":"2017-08-15T07:04:15.666Z",
         "proposedRepairActions":"Switch in standby equipment",
         "alarmReportingTime":"2017-06-15T07:04:15.666Z",
         "alarmRaisedTime":"2020-09-15T07:04:15.666Z",
         "plannedOutageIndication":"IN_SERVICE",
         "serviceAffecting":true,
         "affectedService":[
            {
               "id":"SD WAN Enterprise Solutions",
               "href":"http://api/service/vlan_dot0_dot0"
            },
            {
               "id":"Santa Clara SD WAN Application Service",
               "href":"http://api/service/vlan_dot0_dot0"
            }
         ] 
     }" \
    --user 'user':'password'

Response body.

    {
         "href":"http://api/alarm/ROUTER_IF@Cisco-0000-0-0-0-0-00-00-0-- Xz0/00@00",
         "externalAlarmId":"<external-alarm-id>",
         "alarmType":"QualityOfServiceAlarm",
         "type":"QualityOfServiceAlarm",
         "ackState":"acknowledged",
         "perceivedSeverity":"CRITICAL",
         "probableCause":"Threshold crossed",
         "specificProblem":"Inbound Traffic threshold crossed",
         "alarmedObjectType":"ROUTER",
         "alarmedObject":{
            "id":"vManage_000000",
            "href":" http://api/alarmedobject/000000"
         },
         "sourceSystemId":"SOURCE_SYSTEM_vManage_00000_000_00",
         "alarmDetails":"Software Failure on SD-WAN Controller vManage_000000",
         "state":"RAISED",
         "alarmChangedTime":"2017-08-15T07:04:15.666Z",
         "proposedRepairActions":"Switch in standby equipment",
         "alarmReportingTime":"2017-06-15T07:04:15.666Z",
         "alarmRaisedTime":"2020-09-15T07:04:15.666Z",
         "plannedOutageIndication":"IN_SERVICE",
         "serviceAffecting":true,
         "affectedService":[
            {
               "id":"SD WAN Enterprise Solutions",
               "href":"http://api/service/vlan_dot0_dot0"
            },
            {
               "id":"Santa Clara SD WAN Application Service",
               "href":"http://api/service/vlan_dot0_dot0"
            }
         ] 
     }

## Alarm Management Open API -- POST /sn_ind_tmf642/alarm_mgmt/alarm/{id}/clear {#ariaid-title6}

Clears a specified alarm and closes any associated alert.

### URL format

Default URL:
/api/sn_ind_tmf642/alarm_mgmt/alarm/{id}/clear

### Supported request parameters

{#alarm-POST-clear__entry__2}

| Name | Description |
|-|-|
| id | Unique identifier of the alarm to clear. Data type: String Table: In the Message key field of the Events \[em_events\] table. |
[Table 25. Path parameters]

{#alarm-POST-clear__entry__6}

| Name | Description |
|-|-|
| None |   |
[Table 26. Query parameters]

{#alarm-POST-clear__entry__10}

| Name | Description |
|-|-|
| alarmClearedTime | Date and time at which the alarm clears at the source. Data type: String Table: In the Time of event field of the Events \[em_events\] table. |
| clearSystemId | Required. Name of the instance from which the alarmCleared operation was invoked. Data type: String |
| clearUserId | Required. Unique ID of the user who invoked the alarmCleared operation. Data type: String |
[Table 27. Request body parameters (JSON)]

### Headers

The following request and response headers apply to this HTTP
action only, or apply to this action in a distinct way. For a list of general headers used
in the REST API, see [Supported REST API headers](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-POST-clear__entry__18}{#alarm-POST-clear__accept-JSON-only-entry-RESTAPI}{#alarm-POST-clear__content_type-JSON-only-entry-RESTAPI}

| Header | Description |
|-|-|
| Accept | Data format of the response body. Only supports application/json. |
| Content-Type | Data format of the request body. Only supports application/json. |
[Table 28. Request headers]

{#alarm-POST-clear__entry__24}

| Name | Description |
|-|-|
| None |   |
[Table 29. Response headers]

### Status codes

The following status codes apply to this HTTP action. For a
list of possible status codes used in the REST API, see [REST API HTTP response
codes](https://www.servicenow.com/docs/aXidvjgEVmS~V~ZL0h85lQ "REST (REpresentational State Transfer) is a simple stateless architecture that provides standards between computer systems on the web, making it easier for them to communicate with each other.").
{#alarm-POST-clear__entry__28}

| Status code | Description |
|-|-|
| 201 | Successful. The request was successfully processed. |
| 400 | Bad request. Possible reasons: * Invalid payload. Missing required alarm ID. * Invalid payload. Required field missing:\<field name\>. * Invalid payload. Missing required object. * Event not created, failed. * Unable to clear event. * Unable to update event. * The event doesn't exist. {#alarm-POST-clear__ul_f4x_sdb_ynb} |
[Table 30. Status codes]

### Response body parameters (JSON)

{#alarm-POST-clear__entry__34}

| Name | Description |
|-|-|
| alarmClearedTime | Date and time at which the alarm clears at the source. Data type: String Table: In the Time of event field of the Events \[em_events\] table. |
| clearSystemId | Name of the instance from which the alarmCleared operation was invoked. Data type: String |
| clearUserId | Unique ID of the user who invoked the alarmCleared operation. Data type: String |
| href | URL of the alarm. Data type: String |
| id | Unique ID. Data type: String Table: In the Message key field of the record in the Events \[em_events\] table. |
[ ]

### cURL request

This example clears an alarm.

    curl "https://<instance>.service-now.com/api/sn_ind_tmf642/alarm_mgmt/alarm/6e116bb8db09201087b9a8394b961950_<external-alarm-id>/clear" \
    --request POST \
    --header "Accept:application/json" \
    --header "Content-Type:application/json" \
    --data "{
      \"alarmClearedTime\": \"2017-08-15 06:04:15\",
      \"clearSystemId\": \"<source_instance_name>\",
      \"clearUserId\": \"SOURCE_SYSTEM_vManage_00000_000_00\" 
    }" \
    --user 'user':'password'

Response body.

    {
      "result": {
        "alarmClearedTime": "2017-08-15 06:04:15",
        "clearSystemId": "<source_instance_name>",
        "clearUserId": "SOURCE_SYSTEM_vManage_00000_000_00",
        "id": "6e116bb8db09201087b9a8394b961950_<external-alarm-id>"
      }
    }


