# SyncManager not updating on onReadReceiptUpdated

**URL:** <https://community.sendbird.com/t/syncmanager-not-updating-on-onreadreceiptupdated/1960>\
**Category:** JavaScript\
**Tags:** syncmanager\
**Created:** [March 26, 2021, 1:19am UTC](https://community.sendbird.com/t/syncmanager-not-updating-on-onreadreceiptupdated/1960 "2021-03-26T01:19:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Rafa](https://avatars.discourse-cdn.com/v4/letter/r/e495f1/32.png) [@Rafa](https://community.sendbird.com/u/Rafa)\
**Post date:** [March 26, 2021, 1:19am UTC](https://community.sendbird.com/t/syncmanager-not-updating-on-onreadreceiptupdated/1960/1 "2021-03-26T01:19:07Z")

</div>

The `handler.onChannelEvent` update action is not being called when a read receipt is updated.

sb.ChannelHandler().onReactionUpdated on the other hand does work