New error codes for TFV and A2P 10DLC registration feedback
Twilio is adding new error codes to provide clearer feedback when Toll-Free Verification and A2P 10DLC campaign registrations are rejected, helping developers understand and resolve issues more quickly.
On September 15, 2026, Twilio will add new error codes for Toll-Free Verification and A2P 10DLC campaign registration rejections.
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