Census change history: Facebook (Meta) Sync Failures - API access disrupted

Facebook (Meta) syncs failed with “API access disrupted” in a major incident affecting Census Sync Management UI and Sync Engine from 2026-08-26 13:09 UTC to 2026-08-26 14:11 UTC (1 h 2 min). Census identified an Activations Meta app issue and implemented a fix; all affected syncs will recover on their next triggered or scheduled run.