Wrong posting type on invoice matching process

Invoice register is matched with purchase order. Transaction shows wrong posting type on approval process. Actual result Arrival account = Vendor incoming Offset account = Vendor incoming Expected result Arrival account = vendor balance Offset account = Vendor incoming As consequence, all reports based on vendor balance posting type can be wrong. In this case, French tax audit report (FEC) does not report CompAuxNum (vendor account) as not vendor balance posting type. Audit file is inconsistent.