Reference id must be 50 characters or fewer
The requirementstatement
The campaign reference id must be at most 50 characters, and unique within the CSP.
- Severityseverity
- MediumMEDIUMUsually survives review, but lowers your trust score or invites a manual look you would rather avoid.
- When it bitesphase
- Gates approvalapprovalGet this wrong and the brand or campaign is refused at registration.
- What is checkedobject
- campaign.reference_id
- 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
- TCRBandwidthTelnyx
- When it appliesapplicabilityText
- Applies to every 10DLC registration.
Why this rule existsrationale
The reference id is your own key for finding this campaign again when a rejection arrives months later, and an over-long value is rejected at submission rather than truncated. Teams reach the cap by concatenating a customer name, a use case and a timestamp into one string, which is also what makes it collide with a sibling campaign.
How to fix itremediation
Use a short opaque key you can look up on your side rather than a descriptive sentence, and confirm no other campaign in your CSP account already uses it. Done when the value is under 50 characters and unique.
A compliant exampleexample
reference_id: SP-2026-0142
Notesnotes
Only the length half is settled here. Uniqueness needs the CSP's whole campaign list, which a single registration does not carry — a duplicate surfaces at submission as "Duplicate campaign", and the remediation says to check it because we cannot.
Rules you will hit next
Other campaign rules at the same severity. A registration is judged as a whole, not rule by rule.
CMP-010HELP and STOP replies should fit in a single 160-character segmentMediumMEDIUMCMP-014Keyword entries must carry no surrounding whitespaceMediumMEDIUMCMP-018Attributes that do not apply to the registration type must be emptyMediumMEDIUMCMP-050The description must not contain personal dataMediumMEDIUMCMP-053A site a US reviewer cannot reach must be declared as suchMediumMEDIUMCMP-188A non-standard opt-out keyword is honoured by nobody but youMediumMEDIUM
CMP-021 is one of 94 campaign rules in the 915-rule 10DLC registry. Free to cite under CC BY 4.0.