---
sourceDocument: Zurich Employee Service Management
sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/employee-service-management

 Release :

    - zurich

ft:locale :

    - en-US

ft:publication_title :

    - Zurich Employee Service Management

ft:clusterId :

    - emplsm

bundleId :

    - emplsm

workflow :

    - Employee


---

# Enable chat access for guest users

# Enable chat access for guest users {#ariaid-title1}

* Release version: Zurich
* 
* Updated July 31, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Enable chat access for a guest user while configuring ServiceNow® for Microsoft Teams settings for a self-configured app.

## Before you begin

Role required: External admin (external_app_install_admin)

## Procedure

1. Navigate to AllServiceNow for Microsoft 365Teams Guest User Chat Configuration.
2. On the form, fill in the fields.  
   {#enable-guest-chat-access-st__table_udz_vc4_f5b__entry__2}

   | Field | Description |
   |-|-|
   | Tenant ID | Directory (tenant) ID from the application overview page in the Microsoft Azure portal. Use the ID value to update details in the ServiceNow instance. |
   | Tenant full name | Full domain name of the tenant or host. For example, account1.onmicrosoft.com. |
   | Enable Guest access | Option to enable the Client Credentials token to fetch user type details that were set during the process of [Enable authentication of guest users](https://www.servicenow.com/docs/ALC7~nRVN27WwgumGEalVA "Verify and update application registry values to authenticate guest users in the Microsoft Teams application to start and import chats for a self-configured app."). If you do not select this option, an error occurs when the guest tries to start or import a Microsoft Teams chat. Note: When the guest access is enabled, the sn_tcm_collab_hook.MS_Teams_Chat_App_Credentials value in the sys_alias table configured in Connection \& Credential Aliases fetches the Azure user details. When the guest access is inactive, the sn_tcm_collab_hook.MS_Teams_Chat_Credentials value in the sys_alias table configured in Connection \& Credential Aliases fetches the Azure user details. |
   | Allowed Guest domains | The guest user domains where invited guests can start or import a chat. Only the tenants in these domains can start or import a chat. List multiple guest domain names as comma-separated values. |
   [Table 1. Teams Guest User Chat Configuration form]

   {#enable-guest-chat-access-st__table_udz_vc4_f5b}
3. Select Submit.

## Result

Guests belonging to the selected guest domains can start or import chats.

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