# 30892: Campaign vetting rejection - Invalid Sample Message - Public URL Shorteners

Log Type: APPLICATION

Log Level: ERROR

## Description

This error appears when your A2P 10DLC campaign is rejected during vetting because a sample message includes a public URL shortener or an unsecured website URL. For campaign submissions that include shortened links, use only a dedicated, branded short domain that belongs to your business. Public shorteners such as bit.ly or TinyURL can cause the campaign to be rejected.

### Possible causes

* A sample message includes a link from a shared public URL shortener instead of a business-owned branded short domain.
* A sample message includes a website URL that is unsecured.
* The URL in the sample message does not clearly identify your business, which increases the risk of rejection during campaign review.

### Possible solutions

* Remove any shared public shortener links from your sample messages and replace them with a direct business URL or a branded short URL that belongs to your business.
* Update the sample message so every URL is secure and publicly accessible for review.
* If you need shortened links, configure link shortening with your own branded domain through Messaging Services instead of using a free public shortener.
* Review all sample messages before resubmitting the campaign to make sure the links match your business and the campaign you are registering.

#### Additional resources

* [A2P 10DLC overview](/docs/messaging/compliance/a2p-10dlc)
* [Troubleshooting and rectifying A2P Campaigns](/docs/messaging/compliance/a2p-10dlc/troubleshooting-a2p-brands/troubleshooting-and-rectifying-a2p-campaigns)
* [Link Shortening](/docs/messaging/features/link-shortening)