Infor LN & Baan Tips & Tricks for Finance: Problem Invoices
You can use a problem code to indicate that a problem exists for a sales invoice. If the invoice-to business partner notifies you about a problem with the invoice and does not pay it, you can link a problem code to the invoice.
In the direct debits procedure, problem invoices are automatically discarded. For each problem code, you can set an option to prevent linked invoices from being selected on reminder letters.