You can deactivate or activate a User by following these steps:
- Click on the Admin category within the navigation bar at the top.
- Click on the Users tab on the left.
- Click on the edit symbol (pencil) to the right of the User you'd like to edit.
- Check the Enabled? box to activate the user. Uncheck the Enabled? box to deactivate the user.
- Then click the Update Account button at the bottom.