Before you can add someone to a workgroup, they must already have a Lightup app account. If you're an App Admin, you can invite new app users and assign them app roles. They will then be available to add to workspaces.
In the left nav, select Admin.
On the main form, select the Users tab.
Select Add User +.
4. In the popup that opens, select the Email field, then enter the new user's email address.
5. Pick an app role for the new user, and then select Add.