It's easy to create a Slack channel on a computer or mobile device, as long as you have permission from an administrator.

The permissions required to make a private channel Before diving into how to make a private Slack channel, you need to understand the permissions and implications involved in the process.

In order to join a Slack workspace, you'll first need an invitation. By default, all Slack workspaces are invite-only in order to ensure privacy.

So how can you join the Office Slack channel? It's simple. All you need to do is follow the link here, and sign up for Slack how you normally would.