WhatsApp Cloud API Registration: Fixing 'Could Not Connect'
You cannot register a number for the WhatsApp Cloud API from the App Dashboard, only from the API. Here is the call that works, the permissions it needs, and the errors you will hit.

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You cannot register a number for the WhatsApp Cloud API from the App Dashboard, only from the API. Here is the call that works, the permissions it needs, and the errors you will hit.
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