SAP Message /SAPPCE/DPCM1601 - Tax code changed, although final invoice has been created for DP chain

Diagnosis You want to change the tax code for down payment chain &V1&, although afinal invoice has already been posted. System Response In Customizing, the system checks if it is allowed to change the taxcode and displays accordingly an information, warning or error message. Procedure for System Administration Thie messages can be configured in Customizing for Debit-Side andCredit-Side Down Payment Chains.