WhatsApp error 133015: Please wait a few minutes before attempting to register this phone number

Code 133015 means you are trying to register a phone number that was deleted very recently, and the deletion is still being processed in the background. The platform refuses to register the number again until that cleanup finishes. Meta's instruction is precise: wait 5 minutes and retry.

This is common in migration and re-onboarding flows, where a number is removed from one WABA and immediately added and registered on another, or where a script deletes and recreates a number to reset its state. The number is not lost and there is no permanent problem; the platform is simply not ready to accept it yet.

Nothing about the PIN, token, or app is wrong. This is purely a timing issue in the account lifecycle, and the retry after the short wait normally succeeds on the first attempt.

The refusal is synchronous, and the five-minute figure is Meta's own stated wait, so build exactly that into the retry rather than guessing. Migration runbooks that hit this repeatedly are usually deleting numbers when they only needed to deregister; the difference between the two operations is covered in the registration troubleshooting guide.

Build a deliberate delay into any workflow that deletes and re-adds a number, and treat 133015 as a retry-after signal rather than a failure. Avoid delete-and-recreate as a way to reset state; deregister and register instead, which does not trigger this wait. The deletion and registration ceilings sit alongside the other account and number limits.