# MSG-063 — Opt-in confirmation must disclose message frequency

> The confirmation must state how often messages will arrive.

- **Rule ID:** MSG-063
- **Layer:** Message content (`MESSAGE_CONTENT`)
- **Checks:** `campaign.optin_message`
- **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:** CTIA, TCR, Bandwidth
- **Applies:** Applies to every 10DLC registration.
- **Canonical URL:** https://ekas.io/rules/10dlc/message-content/msg-063/

## Why this rule exists

CTIA requires frequency in the confirmation specifically, and it is the disclosure most often present at the web opt-in and missing from the confirmation. It sets the expectation that determines whether the third message of the week reads as service or spam.

## How to fix it

Add a frequency statement, matching whatever you promised at the opt-in.

## Example of a compliant value

```text
Msg frequency varies.
```