Edit customer details
On your SumUp profile, click the "Invoices" tab in the left-hand panel.
Scroll to the bottom of the screen and select "Customers".
Click the customer you want to edit to view their details
Select "Edit".
Amend the customer’s details and click "Done" to confirm.
Delete a customer
On your SumUp profile, click the "Invoices" tab in the left-hand panel.
Scroll to the bottom of the screen and select "Customers".
Click the customer you want to delete.
Select "Delete" and then click "Confirm".