Each sample message must be 20–1024 characters

The requirementstatement

Every sample message must be at least 20 and at most 1024 characters.

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[]
Where it liveslayer
CampaignCAMPAIGN
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
TwilioTCR
When it appliesapplicabilityText
Applies to every 10DLC registration.

Why this rule existsrationale

A sample under 20 characters cannot demonstrate a real message, and one over 1024 is not a text message at all. Both bounds are published and enforced mechanically at submission.

How to fix itremediation

Write realistic sample messages of at least 20 characters each.

A compliant exampleexample

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

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 campaign rules

CMP-SAMPLE-LEN is one of 94 campaign 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.