# CMP-142 — Use case must be available to the brand entity type

> Restricted use cases must only be selected by the entity types eligible for them.

- **Rule ID:** CMP-142
- **Layer:** Campaign (`CAMPAIGN`)
- **Checks:** `campaign.usecase + brand.entity_type`
- **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:** Deterministic (settled in code from the submitted values)
- **Fix type:** Fix the field — a better value in the form clears it
- **Required by:** TCR, Twilio, Infobip
- **Applies:** Applies to every 10DLC registration.
- **Canonical URL:** https://ekas.io/rules/10dlc/campaign/cmp-142/

## Why this rule exists

Several use cases are gated on entity type — charity to non-profits, sole-proprietor to individuals, emergency to registered organisations. Selecting one the brand cannot hold produces a rejection that reads as a campaign problem while the real fix is on the brand.

## How to fix it

Either choose a use case your entity type can hold, or re-register the brand under the entity type the use case requires.

## Example of a compliant value

```text
CHARITY requires entity type NON_PROFIT.
```