---
page_type: error
code: 31302
message: "31302: Unsupported Cancel Message Error"
level: ERROR
product: Programmable Voice
---

## Description

This version of the SDK no longer supports processing cancel push notification messages. You must register via Voice.register(...) on Android or \[TwilioVoice registerWithAccessToken:deviceToken:completion:] on iOS with this version of the SDK to stop receiving cancel push notification messages. Cancellations are now handled internally and reported to you on behalf of the SDK.

### Possible Causes

The identity associated with the Twilio Voice SDK is still registered to receive cancel push notification messages.

### Possible Solutions

The application must register via Voice.register(...) on Android or \[TwilioVoice registerWithAccessToken:deviceToken:completion:] on iOS to stop receiving cancel push notification messages.