We've confirmed that all systems are back to normal with no customer impact as of 07/31, 00:24 UTC. Our logs show the incident started on 07/30, 20:40 UTC and that during the ~4 hours that it took to resolve the issue some customers in USGov experienced failure in triggering Activity Log alerts.
Root Cause: The failure was due to incorrect deployment.
Incident Timeline: 4 Hours - M/D, 07/30, 20:40 UTC through 07/31, 00:24 UTC
We understand that customers rely on Activity Log Alerts as a critical service and apologize for any impact this incident caused.