If a customer has been created twice in the database, you can merge the customer data into one customer using the "Merge customer" button. To do this, search for the two customers in the window. Select the respective customers in the two lists. By clicking on "Apply", the customer data of the customer selected on the right-hand side is transferred to the customer selected on the left-hand side. The customer retains the customer number of the customer displayed on the left.

Dialogue: Bringing customers together