Understand your actions in Slack

Do you ever wonder what happens in Slack when you send a message, mention a member, pin a message, or star an item? Here’s a breakdown of how these features behave so you don’t have to guess.


What's covered

To learn more about what happens when you perform certain actions in Slack, click on any of the links below:


Send messages and files

Action

What happens

Send a message in a channel

All members with access to the channel will be able to read your message

Send a message in a private channel

Only members with access to the channel will be able to read your message

Send a DM to a member

The member is notified

Send a DM to a group

All members of the group DM are notified


Mention teammates

Action

What happens

@mention someone who's not in the channel

The member(s) won’t be notified, but you'll have the option to invite them to the channel or do nothing

@mention someone who's not in the private channel

The member(s) won’t be notified, but you'll have the option to invite them to the channel or do nothing

@mention someone or a user group not in the DM or group DM

The member(s) won't be notified and or allowed to join the conversation


Pin and star items

Action

What happens

Pin an item to a channel or DM

All members with access to the channel or DM can see items you, or other members, have pinned

Star an item in a channel or DM

Only you can see the items you’ve starred


Link channel names

Action

What happens

Send a message with a hashtag + channel name (e.g., #channel)

The channel’s name will appear linked in blue. All members with access can click the channel’s name to open it

Send a message with a hashtag + private channel name (e.g., #privatechannel)

The private channel’s name won’t appear linked in blue and members can’t click the channel’s name to open it

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