Universal opt-out keywords must be supported in copy and configuration

The requirementstatement

STOP, END, CANCEL, UNSUBSCRIBE and QUIT must all be supported, both in the keyword configuration and honoured in practice.

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.optout_keywords
How Ekas settles itdetectability
DeterministicDETERMINISTIC
Settled in code from the values you submitted. No model involved, no judgement call, same answer every time.
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
CTIAFCCTCR
When it appliesapplicabilityText
Applies to every 10DLC registration.

Why this rule existsrationale

These five are recognised at handset and carrier level regardless of configuration, so a consumer using any of them has effectively opted out whether your platform noticed or not. Declaring them aligns your suppression list with what has already happened.

How to fix itremediation

Add all five universal keywords to the configuration, ideally alongside REVOKE and OPTOUT.

A compliant exampleexample

STOP, QUIT, END, REVOKE, OPTOUT, CANCEL, UNSUBSCRIBE

Rules you will hit next

5 other rules read campaign.optout_keywords. 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-054 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.