If you wish to reactivate or simply find an inactive user, you can go to Settings and click Users. From there, you need to click the Status filter and tick Inactive. This will show you a list of your workspace's inactive users.

If you wish to reactivate a user, you can click on the Actions button on the same row as the user's name and click Activate user.

When a practitioner is deactivated, workspaces are now prompted to either archive future appointments and support activities or assign them to another practitioner.