Short answer
Sign in with the intended login and choose an eligible self-serve account with credit-card billing. Each user can create or join at most 10 accounts. If you hit the cap, ask an existing account admin to invite you instead.
Also check
- Your country is on the availability list
- Your organisation allows Ads access (Ads Admin role)
- You aren't trying to create an account for a client as an agency
Questions
Can the cap be raised?
OpenAI's article states the cap of 10 created or joined accounts; it doesn't describe an exception process.
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.
