Many Facebook advertisers woke up Sunday morning in shock when a bug in Meta’s ad delivery system caused a series of accounts to be severely overspended .
Some ad buyers reported CPM increases of 200%-500% from the previous day, while all ad performance metrics appeared to be impacted. Other advertisers also said their ad sets far exceeded their daily set budgets and were unable to limit the damage.
Meta acknowledged the issue within hours of receiving the report and quickly implemented a fix, while also assuring advertising partners that credits would be issued to rectify the situation.
As of 9:45 PM ET, Meta has reportedly fixed the issue and all ad systems are functioning normally again. Meta said it will communicate directly with the affected ad account managers in the coming days.
