# 93002: Message annotations, updates, appends, and deletes not enabled

Identifier: `message_updates_not_enabled`



An operation could not be performed because the channel did not have the 'Message annotations, updates, appends, and deletes' rule enabled.

## What you should do

Enable the "Message annotations, updates, appends, and deletes" rule for the channel's namespace in your app settings, then retry. This one rule turns on both [message annotations](https://ably.com/docs/messages/annotations.md) and message [updates, deletes and appends](https://ably.com/docs/messages/updates-deletes.md), one of which the operation depends on.

## Why it happens

The operation uses [message annotations](https://ably.com/docs/messages/annotations.md) or [updates, deletes and appends](https://ably.com/docs/messages/updates-deletes.md), but the channel's namespace did not have the "Message annotations, updates, appends, and deletes" rule turned on.

## What you'll see

The error is reported with code 93002 and HTTP status 400. The message is of the form `Annotations are only supported on channels with mutable messages enabled in channel namespace settings`.