---
page_type: error
code: 30009
message: "30009: Missing inbound segment"
level: ERROR
product: Programmable SMS
---

## Description

One or more segments associated with your multi-part inbound message was not received.

### Possible Causes

- The mobile network or carrier did not successfully send the entire message to Twilio
- The mobile handset had a malfunction and did not successfully send all segments
- The mobile user was in poor network coverage, causing an incomplete message to be sent

### Possible Solutions

- Ensure the mobile user is in good network coverage and request they try sending the message again
- If the issue is occurring frequently for multiple users, [contact Twilio Support](https://www.twilio.com/console/support/tickets/create) with Message SIDs of affected messages