All clients are active by default. If you have deactivated a client, you may reactivate them at any time. To activate a Client:
In the left navigation pane, click the Client Management tab, and then select Clients.
Select the client you want to activate (you can activate more than one at a time) by checking the box located to the left of the client name.
From the Action menu, click Edit, Activate. The client will be activated.