---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/30538#article
headline: "30538: A message sample is missing for a selected use case"
url: https://www.twilio.com/docs/api/errors/30538
inLanguage: en
dateModified: 2026-10-27T13:08:36.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 30538: A message sample is missing for a selected use case

Log Type: APPLICATION

Log Level: ERROR

## Description

This error applies to both Toll-Free Verification and A2P 10DLC registration.

You selected multiple use cases but provided a sample message for only one. Each selected use case needs its own sample.

### Possible causes

* The selected use cases mix content types, such as marketing and informational, but only one sample message was provided.

### Possible solutions

* Provide a unique message sample for each use case you selected, then resubmit.

### Additional resources

* [A2P 10DLC Campaign Onboarding Guide](https://help.twilio.com/articles/11847054539547-A2P-10DLC-Campaign-Approval-Best-Practices)
* [Toll-Free Verification Onboarding Guide](https://help.twilio.com/articles/13264118705051)
* [Troubleshooting and rectifying Campaigns](/docs/messaging/compliance/a2p-10dlc/troubleshooting-a2p-brands/troubleshooting-and-rectifying-a2p-campaigns-1)