We've confirmed that all systems are back to normal with no customer impact as of 4/8, 03:33TC. Our logs show the incident started on 4/8, 03:12 UTC and that during the 21 minutes it took to resolve the issue, customers may have experienced issues accessing their Application Insights data in West Europe.
Root Cause: The failure was due to a backend service that became unhealthy.
Incident Timeline: 21 minutes - 4/8, 03:12 UTC through 4/8, 03:33 UTC
We understand that customers rely on Application Insights as a critical service and apologize for any impact this incident caused.
Initial Update: Wednesday, 08 April 2020 03:37 UTC
We are aware of issues within Application Insights and are actively investigating. Some customers may experience issues with Data Access in the West Europe region. The issue began at 03:12 4/8 UTC
Work Around: none
Next Update: Before 04/08 05:00 UTC
We are working hard to resolve this issue and apologize for any inconvenience. -Ian