Withholding tax - cancel invoice

Question

Hello Experts, I have configured Extended Withholding tax for invoices, so when an invoice is generated, a line item for withholding tax is generated as well. My problem is when cancelling an invoice (MR8M): the system generates an FI document with all items reversed except withholding tax item, this amount is added to vendor account line item. Neverthless, when FI document generated is canceled by FB08, reversal document is generated considering withholding tax item, as is required. Could anyone help me?
Thanks in advance.
Efren

Answer 1

Hi Ravinagh, I already have maintained accounts in Tx.OBWO, and the problem persists. Transaction MR8M does not consider this settings, unlike FB08. For example, this is documetn FI generated from invoice:
PK   Acc.                 Text                            Amount
31    2010008239      Company AAA              1,047.20-
86    42010008          Fact.x Services        1,000.00
40    40011002     IVA-Purchasing               190.00
50    40012005     Withholding tax %           142.80-
MR8M generates this document:
PK   Acc.                 Text                               Amount
21   2010008239     Company AAA        1,190.00
96   42010008     Fact.x Services        1,000.00-
50   40011002     IVA-Purchasing           190.00-
And what is required is as transaction FB08 generates:
PK   Acc.                 Text                               Amount
21  2010008239         Company AAA             1,047.20
96     42010008          Fact.x Services        1,000.00-
50     40011002          IVA-Purchasing           190.00-
40     40012005          Withholding tax %           142.80   
Here is the difference, where is the missing configuration to make MR8M generate this last item??
Thanks in advance for any help.
Efren