# OPS-215 — Express written consent must name the specific number and bear a signature

> The retained consent agreement must identify the specific telephone number consented for and bear the consumer's signature.

- **Rule ID:** OPS-215
- **Layer:** Operational (`OPERATIONAL`)
- **Checks:** `campaign.message_flow`
- **Severity:** HIGH — Rejected by at least one carrier or provider, and a common cause of failure at the rest.
- **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:** FCC
- **Applies:** Applies when the use case is MARKETING, MIXED, SWEEPSTAKE and LOW_VOLUME.
- **Canonical URL:** https://ekas.io/rules/10dlc/operational/ops-215/

## Why this rule exists

TCPA express written consent is a signed agreement naming the number, and an electronic signature under E-SIGN qualifies — a ticked box with a stored identity and timestamp satisfies it. What does not satisfy it is a record that cannot tie a signature to a specific number.

## How to fix it

Ensure the consent record ties an identifiable signature — including an E-SIGN electronic one — to the specific number, and describe that linkage in the message flow.

## Example of a compliant value

```text
The checkbox action, the entered phone number, the consenting account identity and the timestamp are stored together as the signed agreement.
```