We usually do receipt of invoice first and then receive the goods separately.

When we receive an invoice, we have a miscellaneous field for commission that is due to our vendor (/Comm) going to a specific GL account.

I made a mistake when receiving goods, and re-entered the Commission for this order, so the PO now has a higher value than that of the invoice.

I tried to use 'return of goods entry' but since it is a miscellaneous field, it did not show up.  Not sure  how to correct this.  Any assistance is appreciated.