---
sourceDocument: Brazil IT Operations Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-operations-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Use DEX Self-Service

# Using Digital End-user Experience Self-service {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
With Digital End-user Experience Self-service, you can monitor device performance using the Device health check feature available in Desktop Assistant and Employee Center, or conversationally through the ServiceNow Otto for ITSM
Virtual Agent.
You can access Device health check from the following sources:

* Employee Center. See [Check device health using Employee Center](https://www.servicenow.com/docs/A422aVMgcQXY_0BXaY58Ow "Monitor and resolve common device performance issues independently by using Device health check through the Employee Center portal.").
* Desktop Assistant. See [Check device health using Desktop Assistant](https://www.servicenow.com/docs/60zSqJkXMscbOT2KDtnn6g "Monitor and resolve common device performance issues independently by using Device health check through Desktop Assistant.").
* Now Assist for ITSM Virtual Agent. See [Check device health using ServiceNow Otto for ITSM Virtual Agent](https://www.servicenow.com/docs/aGdL1k1Cw5qaU9xjv3DwNw "Use the ServiceNow Otto for ITSM Virtual Agent to monitor device performance, diagnose potential issues, and use suggested resolutions to address them.").
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You might be unable to access the Device health check widget or page due to the following reasons:

* The device isn't assigned: DEX monitored devices aren't assigned to you. 
* The device is offline: The device list drop-down is inactive and you see a message that the device is currently offline.
* The device is online but no recent data is available: You see a message notifying you that Device health check is unavailable and are prompted to retry later or open an IT ticket.
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