You can use Slack Connect to start a direct message (DM) with someone at another company. To start a DM conversation, an invitation must be sent and accepted. Keep in mind that you or the person you invite can end a conversation at any time.
Hover over an invitation and click the revoke icon.
Select Revoke to confirm.
Tap your profile picture at the top of your screen.
Tap Invitations to connect.
Tap the Sent tab.
Locate the invitation, then tap Revoke.
Tap your profile picture at the top of the screen.
Tap Invitations to connect.
Tap the Sent tab.
Locate the invitation, then tap Revoke.
Accept an invitation
Hover over More.
Click External connections.
Click Accept next to the invitation.
Review the invitation details to make sure you recognize the sender’s email address and other info. When you’re ready, click Accept Invitation.
Tap your profile picture at the top of your screen.
Tap Invitations to connect.
Review the invitation details. If the sender included a message, tap View message to read it. When you’re ready, tap Accept.
Choose the Slack account you’d like to use for this DM. If you don't see your preferred account, tap Sign in to another account.
Tap Start Conversation.
Tap your profile picture at the top of your screen.
Tap Invitations to connect.
Review the invitation details. If the sender included a message, tap View message to read it. When you’re ready, tap Accept.
Choose the Slack account you’d like to use for this DM. If you don't see your preferred account, tap Sign in to another account.
Tap Start Conversation.
Block an invitation
If you receive a DM invitation you don't want to accept, you can ignore it. But if there's someone you don't want to hear from, you can block them from sending you future Slack Connect invitations from any Slack account associated with their email address.
Hover over More.
Click External connections.
Next to the invitation, click Ignore.
Click Block invitations from this person, then click Block Invitations to confirm.
Open the invitation in your email inbox.
Below the invitation details, tap Block all invitations.