You can mute specific channels and direct messages (DMs) if you don't want to get notifications for those conversations. Muted conversations will appear greyed out in your channel list, but you'll still see sidebar notifications:
Numbered badges will appear next to conversations if you're mentioned or receive a DM.
At the top of your sidebar, Threads will appear bold if someone replies to a message that you've sent in a muted conversation.
Mute a channel
Desktop
Mobile
Open the channel that you want to mute.
Click on the channel name in the conversation header.
Below the channel name, click on the notifications menu.
Select Mute channel.
Open the channel that you'd like to mute.
Tap the channel name in the conversation header.
Tap the toggle next to Mute channel.
Mute a DM
Desktop
Mobile
Open the DM that you want to mute.
Click on the name(s) in the conversation header.
Below the name(s), click on Mute. If it's a group DM, you'll need to click on the notifications menu first.
Open the DM that you want to mute.
Tap the name(s) at the top.
Tap the toggle next to Mute.
Note: Muting a DM won't affect messages sent by the same people in other conversations.
Mute a DM with an app or bot
Apps and bots connected to your workspace can send you messages in dedicated DMs. To mute a DM with an app or bot, use the steps below:
Desktop
Mobile
From your desktop, hover over More.
Click Automations.
Click Apps.
Search for and select the app or bot that you want to mute.
Click on the app or bot name in the conversation header.
Below the app or bot name, click on Mute.
Tap the Home tab at the bottom of the screen.
Tap Jump to and search for the app or bot that you want to mute.
Tap the name of the app, then click the toggle next to Mute.
Note:It’s not possible to mute notifications from Slackbot.