WA-2070
A previous deregistration of the WhatsApp number did not finish
Why it happens
Deregistering this number was started earlier but did not finish, so it cannot be registered now. Meta’s full message is in the technical details.
What to do
Deregister the number, then register it again from the WhatsApp channel settings in Rabt.
- HTTP status
- 422
- Retrying does not help