The Customer Order was created:

Using the „Quick Order Flow Handling” window, was made:
- Release,
- Reserve,
- create pick list,
- reporte picking of pick lists,
- delivere,
- create invoice.

The Customer Order has „Invoiced/Closed” status:

The „Customer Invoice” has „Preliminary” status:

Then The RMA was created:



When we want to cancel the Customer Invoice:

We get an error message:

Is there a way to cancel the preliminary invoice when the RMA already exists?
It isn’t possible to posted the invoice and make correct, because the order was created with wrong customer.