Microsoft says the Advertising platform and ad delivery were not directly affected. But users who could not load Outlook sent fewer ad requests from Outlook, which may have lowered some advertisers' spend.
The outage started on November 12 and mostly hit Exchange Online. Microsoft Advertising will wait for the wider Microsoft 365 recovery status before closing its own notice.
Watch out: if your Microsoft Ads spend or impressions dropped on November 12 and 13, check the placements that serve in Outlook before you change bids or budgets.
Via Barry Schwartz.
