We've confirmed that all systems are back to normal with no customer impact as of 08/17, 17:00 UTC. Our logs show the incident started on 08/17, 15:15 UTC and that during the 2 hours and 45 minutes that it took to resolve the issue, customers using non-retrying SDKs in the North Europe region could have experienced up to 2.6% data loss.
Root Cause: The failure was due to one of our backend services
Incident Timeline: 2 Hours & 45 minutes - 08/17, 15:15 UTC through 08/17, 17:00 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.