Microsoft Advertising has reported that ad delivery was impacted for advertisers between May 14, 2026, 9:20 PM UTC and May 14, 10:30 PM UTC. During this window, many experienced drops in impressions, clicks, and spend due to a platform-related issue.
The engineering team quickly engaged and resolved the issue by 2:02 AM UTC on May 15, 2026.
This incident was shared by Microsoft.