User impact: Admins’ Exchange Online mailbox usage reports may be delayed by up to a day in the Microsoft 365 admin center.

Current status: We identified an issue, alerted to us through our service monitoring telemetry, in which Exchange Online mailbox usage report data may be delayed by up to a day before populating as expected in the Microsoft 365 admin center. Our investigation has so far traced the impact back to an issue within a portion of upstream infrastructure responsible for processing and subsequently populating this data. Moving forward, we’re working to repair the problem and will provide more details regarding an estimated time to resolution in our next scheduled update. 

Scope of impact: Any admin attempting to view Exchange Online mailbox usage reports in the Microsoft 365 admin center may experience impact.

Start time: Sunday, April 23, 2023, at 12:00 AM UTC

Root cause: An issue within a portion of upstream infrastructure responsible for processing Exchange Online mailbox usage report data and subsequently populating it in the Microsoft 365 admin center is resulting in impact.

Next update by: Wednesday, April 26, 2023, at 5:00 PM UTC