Deleting a Client

•  From the SAP login screen, login as any super user in any existing client (which you want to delete)
•  Access the menu path Tools -> Administration -> Client admin.-> Special functions -> Delete client. Alternately run transaction SCC5. 
• In the resulting screen select the option ‘Delete from T000’ and click on ‘Online’ pushbutton in order to run the client delete in the foreground. Alternately administrator can also run this in the background by clicking the pushbutton ‘Background’