We are having ISU implemented in our company. When a sales order is processed from SD (customer group has the posting set to FI-CA), revenue account is selected based on the set up defined under VKOA. However the SD invoice is not passed to accounting unless there is main / sub transaction assignment under FQC1200. While processing the invoice,the corresponding GL account maintained for the subtransaction under EK02 (posting area R001) is not considered.
Could somebody help me in the following?
a) In which circumstances, system picks the GL account based on the sub transaction defined under FQC1200?
b) Which are the cases, system selects the revenue account defined under VKOA