# CMP-074 — Message flow must state that rates may apply

> The message-flow / CTA field must state that message and data rates may apply.

- **Rule ID:** CMP-074
- **Layer:** Campaign (`CAMPAIGN`)
- **Checks:** `campaign.message_flow`
- **Severity:** BLOCKING — Breaking this rule gets the submission rejected outright.
- **When it bites:** Gates approval — get this wrong and registration is refused
- **How it is detected:** AI judgement over the submitted form
- **Fix type:** Fix the field — a better value in the form clears it
- **Required by:** TCR, Twilio, Bandwidth, AWS
- **Applies:** Applies to every 10DLC registration.
- **Canonical URL:** https://ekas.io/rules/10dlc/campaign/cmp-074/

## Why this rule exists

The consumer may be billed per message by their own carrier, and this is the disclosure that tells them so before they agree. It is also the most mechanically-checked element in the framework — reviewers look for it in the flow text as well as on the surface — so omitting it is a certain finding in exchange for eight saved words.

## How to fix it

Quote the rates sentence inside the disclosure you reproduce in the flow. Done when the phrase "Message and data rates may apply" (or a clear equivalent) appears in the flow text itself. Put it in campaign.message_flow itself — this field is graded on its own text, not on what a reviewer would find by opening your site.

## Example of a compliant value

```text
The disclosure beside the box reads "Message and data rates may apply."
```

## Notes

The catalog exempts Free-To-End-User programmes here (CTIA/T-Mobile, see CMP-152). We hold no FTEU fact, so the applicability model cannot express the carve-out and the rule fires universally; an FTEU programme will see a finding it can dismiss.