Title: Some users may see a stale profile or unknown user for federated users in external chats and calls in Microsoft Teams
User impact: Users may see a stale profile or unknown user for federated users in external chats and calls in Microsoft Teams.
More info: Impacted users may see the issue occurring for federated users in chats, calls, channels, and any other service feature that shows federated users.
Specifically, users may see outdated profile information for federated users or show as “Unknown User” in Microsoft Teams if the browser cache doesn’t contain stale profile information for federated users in external chats, calls or any other scenario which includes federated users.
Impact occurs on all Microsoft Teams clients.
Current status: Our increase in bandwidth has provided some relief, however impact persists. We’ve identified that there’s been a significant increase in the volume of requests from multiple Microsoft-managed system components that may be contributing to impact. We’re continuing to investigate why this increase has occurred, while we look into potential mitigation options, such as disabling an internal system component where the increase is seen.
Scope of impact: Some users interacting with federated users on any Microsoft Teams client may be impacted.
Root cause: An imbalance of service load on a portion of infrastructure responsible for populating federated users’ data and information in Microsoft Teams that is resulting in impact.
Next update by: Tuesday, March 5, 2024, at 11:00 PM UTC
