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.
Sometimes your message needs to stand out. With options for a headline and bright background colors, channel announcements help your message cut through noise.
Create an announcement
In the channel's Posts tab, select Announcement under the box where you type your message.
Type a headline and change its background color—lots of options!
Type the topic of your announcement in the Add a subhead area, then add the body of your message and select Post.
Note: Announcement messages are available only in channels—not in group or 1:1 chats.