Short answer
Check recent edits, budget and weekly allowance, bid warnings, policy notices, billing and conversion setup. If nothing explains it, contact support with the campaign goal, bid, conversion setup and the time the drop began.
Check first
- Change log in Ads Manager
- Weekly allowance and pacing
- Bid strength warnings
- Ad review status
- Payment status
- For conversion campaigns: is the event still firing?
Send support
- Ad account ID
- Campaign name and objective
- Bid and bid strategy
- Conversion setup
- When the drop started, with time zone
Questions
Is fluctuation normal in beta?
OpenAI says spend and delivery may fluctuate during the beta as systems change.
Facts checked against the sources below on 12 October 2026. Platforms change quickly: if something here no longer matches what you see, tell us and we will update it.