63116: WhatsApp Sender failed to be automatically registered as OTP was not received

OTP required to automatically verify and register WhatsApp Sender was not received by Twilio despite a successful request to Meta

• An internal error at Meta is preventing the OTP from being sent.
• SMS deliverability issues between Meta and Twilio are causing the code to be lost before reaching Twilio.

• Retry your request later.
• Request the OTP to be sent via a voice call and manually verify it using the Senders API.
• Submit a support ticket to Twilio for further investigation. Twilio can escalate the issue to Meta if necessary, as they can adjust how the OTP is sent, potentially improving deliverability.