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By following the instructions below, you’ll be able to change the mapped client of an existing contact to any client already in the system.

 Before you delete a client, you would need to first ensure that the client has not been used on prior transactions else you will not be able to delete the client.

Step 1: Search and select a client which you wish to disable on Optimo V3. 
 
Step 2: In the order to delete an unused client from the client search select the delete button as shown in the below screenshot.