SAP Message RTP231 - Transaction amount will be reduced with total withholding amount

Diagnosis
The total with holding amount will be taken from payment transactionamount. Hence the contribution and distribution amount are reduced withwithholding amount. While posting payment items for this correspondingpayment order, with holding will be created as separate additionalposition in distribution payment item.
But transaction amount is not changed while parking. It will beadjusted during post processing.