10DLC by provider · Twilio · Critical
Twilio 10DLC rejected: Sample messages missing opt-out language
Your Twilio registration came back rejected and it points to sample messages missing opt-out language. Twilio did not make that call. Here is what the reason means and exactly how to fix it.
Twilio showed your A2P 10DLC campaign as rejected, and the reason maps to "Sample messages missing opt-out language". The part that trips people up: Twilio did not decide this. It submitted your brand and campaign to The Campaign Registry (TCR) and the carriers, they returned the rejection, and Twilio is relaying it back to you.
That is good news for the fix. Because "Sample messages missing opt-out language" is a carrier and TCR requirement rather than a Twilio rule, the correction is the same no matter which provider you registered through: At least one sample (typically the first/initial message) must show how recipients stop messages.
Where Twilio shows this rejection
In the Twilio Console, the campaign's status and the returned rejection reason appear under your Messaging / A2P 10DLC section, on the campaign that failed. The text you see there is the reason relayed from TCR or the carrier.
Twilio is the messenger, not the decider
Note the difference between a registration rejection and a sending error. A rejected campaign is a registration decision you resolve by fixing the package and resubmitting. A send-time error on an unregistered number is a symptom of registration not being complete, not a separate campaign rejection. If you are unsure which you are seeing, the rejection reason text is the tell.
The fix
Include 'Reply STOP to opt out' (or 'Text STOP to unsubscribe') in at least one sample message.
Same rejection, different provider?
The reason is identical no matter who you registered through.
Common questions
Did Twilio reject my 10DLC campaign for sample messages missing opt-out language?
No. Twilio submitted your campaign to The Campaign Registry and the carriers, who returned the rejection. Twilio relays the reason. You resolve the underlying issue and resubmit through Twilio. The fix here: Include 'Reply STOP to opt out' (or 'Text STOP to unsubscribe') in at least one sample message.
Does every 10DLC sample message need STOP language?
No, but at least one does, typically the first or welcome message. Reviewers want to see that opt-out is present and visible somewhere in your submitted samples.
How do I resubmit after a Twilio rejection?
Correct the issue, then resubmit the campaign for review through Twilio. Every resubmission is re-reviewed and re-review typically takes one to four weeks, so fix every problem before you resend rather than resubmitting to test it.