At least one sample must show opt-out language

The requirementstatement

Sample messages must demonstrate that recipients are told how to stop receiving messages.

Severityseverity
BlockingBLOCKINGBreaking this rule gets the submission rejected. There is no partial credit.
When it bitesphase
Gates approvalapprovalGet this wrong and the brand or campaign is refused at registration.
What is checkedobject
campaign.sample[]
How Ekas settles itdetectability
AI · formAI_FORM
A semantic question about what you wrote: whether a description matches a use case, whether a name looks like a filed entity. Judged by a model against written criteria.
What the fix involvesfailureClass
Fix the fieldRETRY_FIELD
A better value in the form fixes it. Ekas can rewrite it and re-check.
Who requires itauthorities
TCRCTIABandwidthPlivoVonage
When it appliesapplicabilityText
Applies to every 10DLC registration.

Why this rule existsrationale

Reviewers use the samples to confirm the opt-out instruction reaches consumers in the actual message body, not just in the registration paperwork. Where every sample omits it, the reasonable inference is that live traffic omits it too.

How to fix itremediation

Add "Reply STOP to opt out" to your samples. Include it in every promotional sample; for transactional programs at minimum the first message in a series.

A compliant exampleexample

Acme Coffee: 20% off all beans this weekend. Reply STOP to opt out, HELP for help.

Provider rejection codescodes

The code you get back when this rule is what failed, and whether that provider lets you resubmit.

ProviderCodeResubmit
Bandwidth8100Yes

Rules you will hit next

6 other rules read campaign.sample[]. Fixing one field to satisfy a single rule is how a resubmission trades one rejection for another, so read these before you change anything.

All message content rules

MSG-SAMPLES-OPTOUT is one of 122 message content rules in the 915-rule 10DLC registry. Free to cite under CC BY 4.0.

Reading the rules is the easy part.

Ekas runs every rule that gates approval, 823 of these 915, against your registration before it reaches the carrier. It reads your site, your policy pages and your opt-in the way a reviewer would, and hands you the fix, not just the verdict.