When running the ServiceNow Flexera One SaaS Management integration, you may see a 401 Unauthorized error in the Application Roster task.
This occurs when the ServiceNow access token expires before the task completes, especially in environments with large data volumes.

Error example

{"error":{"message":"User Not Authenticated","detail":"Required to provide Auth information"},"status":"failure"}

By default, the Access Token Lifespan in ServiceNow may be set to 14,400 seconds (4 hours).
If the dataset is large, this may not be sufficient to complete the integration task, leading the token to expire mid-run.