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Communicate a channel’s focus and scope#
Available on all plans
Cloud and self-hosted deployments
Every channel in Mattermost serves a purpose and exists for a reason. You can communicate a channel’s focus and scope in 3 ways:
a descriptive channel name
a channel purpose description
channel header details
Channel name#
You’re prompted to provide a channel name when creating a new channel in Mattermost. Channel names must be at least 2 characters, and can be up to 64 characters in length. See the channel naming conventions documentation for additional details and guidance on why channel naming is important.
Note
Some unicode characters aren’t supported in channel names.
Looking to rename an existing channel? See the rename channels documentation for details.
Channel purpose#
You’re prompted to provide an optional channel purpose description when creating a new channel in Mattermost visible when you select View Info 
for the channel. Any member of a channel can change a channel’s purpose description, unless the system admin has disabled the ability to do so.
A channel purpose can be up to 250 characters in length, and is often used to help users decide whether to join that channel.
Select a channel.
Select the channel name and Edit Channel Purpose to provide or update a channel’s purpose.
Select Save.
Tap the channel you want to edit.
Tap the More
icon located in the top right corner of the app.
Tap View info.
Tap Edit Channel.
Type the new purpose of the channel and tap on Save to update the purpose.
Channel header#
A channel header refers to text that displays directly under a channel name at the top of the screen. Any channel member can change a channel header, unless the system admin has disabled the ability to do so
A channel header can be up to 1024 characters in length, include Markdown formatting, and is often used to summarize the channel’s focus or to provide links to frequently accessed documents, tools, or websites.
Select a channel.
Select the channel name and Edit Channel Header. You can use the same Markdown formatting in the channel header as you would when composing a message.
Tap the channel you want to edit.
Tap the More
icon located in the top right corner of the app.
Tap View info.
Tap Edit Channel.
Type the new header of the channel and tap on Save to update the header.
