Default channels for groups
Bulk-join every group member into a set of channels.
A default channel is a regular space attached to a group. When someone is added to the group, they auto-join every default channel. When you add a new default channel to a group, every current member is bulk-joined into it.
When to use them
- A team that always works across the same handful of channels —
#design,#design-feedback,#design-resources— can be set as default channels of aDesign Teamgroup, so onboarding a new designer is one click. - An on-call rotation can attach
#incidentsas a default channel of anOn-Callgroup so newly added on-call engineers immediately appear in the right place.
What "default" means
Default channels are a one-time bulk-join trigger, not a live link:
- Adding a default channel inserts every current group member as a real member of that channel.
- Removing a default channel only deletes the link — the existing members stay in the channel.
- Adding a member to the group inserts them into every default channel.
- Removing a member from the group does NOT remove them from any default channels they joined via the group.
This is intentional. The links act as bulk-join shortcuts, and channel membership is a real, durable thing once granted. If you need to pull someone out of a channel, do it from the channel's member list.
Managing default channels
From Settings → Administration → Groups → your group:
- Add a default channel: pick a public or private channel from the list. You must be able to post in the channel yourself — you can't pull others into a channel you can't reach.
- Remove a default channel: click the trash icon. The link disappears; existing members keep their channel memberships.
Permissions
Only group admins and workspace admins can edit a group's default channels. Group members can't.