Note: Some of the instructions in this article reflect changes available as part of the public preview program and might undergo further updates before being released publicly. If your experience doesn’t line up with this article, switch to Teams public preview.
Do you have information or an announcement that needs to be shared across multiple teams and channels? You can post that message to multiple channels at once.
Note: You can cross-post from Teams on desktop or web.
Cross-post a new channel conversation
Under the Posts tab, select Start a new post.
Select Settings > (Post in) Multiple channels.
Select + to add more channels to post to.
Choose the channels you want to cross-post to, or use search to find a channel. You can post wherever you're a member. Select Update to save.
Type your message and select Post. This sends your message to all the channels listed above the subject field.
Edit a cross-post
You can edit your original message in a cross-post anytime by selecting More actions in the post, and then choosing Edit .
From here, you can also add channels to post in, or you can remove channels from the list. Select + to find channels to add. To remove a channel, just select the X next to its name.
Finally, for any post you create, you can make it a cross-post by selecting More actions , choosing Edit > Settings > (Post in) Multiple channels, and finally picking the channels you want to add by selecting +.
Note: Team owners can establish moderation rules to control who can post, react, and reply to messages in a channel. For more details. see Change moderator roles and settings in a channel.