Census Status Page

May 21, 2026 · resolved May 21

Syncs to Microsoft Advertising temporarily experienced failures with an error message like "OAuth2::Error: invalid_client" from approximately 05/21/2026 17:00 UTC - 05/21/20206 23:19 UTC. This error was the result of the Activations Microsoft Advertising app configuration and it has now been resolved. Any impacted syncs will recover on their next scheduled run.

Feb 26, 2026 · resolved Feb 26

The incident has been resolved. Issue determined to be caused due to a configuration change. Configuration change has been reverted.

Jan 29, 2026 · resolved Jan 29

This incident has been resolved.

Jan 5, 2026 · resolved Jan 5

This incident has been resolved. Syncs have been running normally as of approximately 1:00pm EST, and the web has been running at normal latencies as of 2:00pm EST. The issue was caused by an indexing change on our side that impacted our ability to run syncs reliably. Recovery was delayed because we needed to rebuild the previous indexes. To avoid any risk of data loss, we chose a safer recovery approach that allowed the system to remain temporarily degraded while repairs were being completed. To restore syncs as quickly as possible, we prioritized sync execution and applied targeted fixes to improve performance. During this time, access to the UI was temporarily down.

Dec 11, 2025 · resolved Dec 11

After investigation, a very small number of Sync Runs may have failed with an inability to connect to our Redis instance. The majority of syncs that ran between 1:19 pm and 1:28 pm EST will have experienced a few minutes of delay, and recovered automatically.