Outage in Microsoft Ads

Drop in ad delivery observed for some advertisers using Target Impression Share (TIS) bid strategy

Resolved Minor
December 10, 2025 - Started about 1 month ago - Lasted 9 days
Official incident page

Incident Report

Starting November 15, 2025, 00:00 UTC, advertisers with the campaigns using Target Impression Share (TIS) bid strategy may have observed a drop in impressions, clicks resulting in a minor impact on the spend. This issue does not affect all advertisers using TIS bid strategy at this time.
Components affected
Microsoft Ads Ad Delivery

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