Teams chat from Collaborate showing "Invalid Access token" for one specific user

[aparnaravi]

Subject: Teams chat from Collaborate showing "Invalid Access token" for one specific user

Hi Team,

I’m facing an issue with Microsoft Teams integration through Collaborate in ServiceNow for a specific user.

Issue:
When the user tries to start a Teams chat from Collaborate, the following error is displayed:

Invalid Access token. Please check your credential alias.

Additional observations:

• Teams chat functionality is working correctly for me and other users.

• The issue is affecting only one specific user.

• The user also has a soft PIN configured in ServiceNow.

• In the Collaborate panel, the user presence was showing "Presence unknown".

Actions already performed:

• Verified that the issue is user-specific.

• Checked basic user details and profile information.

Has anyone experienced a similar issue where only one user is impacted? Could this be related to user mapping, OAuth token synchronization, Teams presence resolution, or another user-specific setting?

Any suggestions would be appreciated.

Thank you.

[GlideFather]

Ahoy @aparnaravi,

check this whether it can help you:
Unable to initiate Teams collaboration chats from Aspen "Invalid Access token. Please check your cre...