# 63014: Channel message blocked by user action

Log Level: ERROR

## Description

Twilio returns this error when a message is blocked because the recipient took an action that prevents delivery. Check the channel-specific error details to identify the exact block reason and review the failed message in Messaging Logs.

### Possible causes

* The recipient blocked the sender in the channel they are using, such as WhatsApp, so the message cannot be delivered.
* The recipient opted out or otherwise removed consent for future messages, which blocks later outgoing messages from that sender.

### Possible solutions

* Open the Messaging Logs entry for the failed message and use the `MessageSid` and error details to confirm the channel-specific block reason.
* Stop sending additional messages to that recipient until they re-engage or restore consent for the channel. If you use SMS opt-out handling, accept the relevant opt-in keyword again before resuming delivery.
* If you use WhatsApp, collect explicit opt-ins and respect opt-out requests so recipients do not block your business.

#### Additional resources

* [Debugging Tools](/docs/messaging/guides/debugging-tools)
* [Advanced Opt-Out](/docs/messaging/tutorials/advanced-opt-out)
* [WhatsApp API](/docs/whatsapp/api)