---
page_type: error
code: 30508
message: >-
  30508: Toll Free verification rejection - Pre-selected opt-in checkbox is not
  allowed
level: ERROR
product: Programmable Messaging
---

## Description

The Toll-Free phone number verification submission has been reviewed and it was rejected. Messaging traffic on this Toll-Free number is blocked until it's verified.

Verification is one component of ensuring A2P SMS is used by businesses in a legal and compliant manner. The review process looks at the business sending messaging (not the software powering it), the use case, sample content, the web presence, the opt-in/consent collected and associated website terms and privacy policies.

### Possible Causes

Your opt-in process uses pre-selected or pre-checked options for consent, which fails to provide users with a clear choice. This includes:

- Checkboxes that are automatically checked by default
- Toggle switches that are pre-enabled
- Any opt-in mechanism where the default state is "opted in"

### Possible Solutions

- Remove all pre-selected options from your opt-in forms
- Ensure all checkboxes or consent mechanisms start in the unchecked/unselected state
- Require users to actively select or confirm their consent
- Update your opt-in workflow to require affirmative action from users
- Provide evidence of the corrected opt-in process when resubmitting

[Why was my Toll Free Verification Rejected?](https://support.twilio.com/hc/en-us/articles/9321443984155-Why-Was-My-Toll-Free-Verification-Rejected)

[Required information for Toll-free verification](https://support.twilio.com/hc/en-us/articles/13264118705051-Required-Information-for-Toll-Free-Verification)

[Toll-Free best practices](https://support.twilio.com/hc/en-us/articles/360038172934-Information-and-best-practices-for-using-Toll-Free-SMS-and-MMS-in-the-US-and-Canada)