In 0FI_AP_4 extractor(account payable) there are few fields which are getting the data by calculation based on two other fileds on a table.
Like DMSOL (field of AP extractor) will get the data from BSIK table fileds like DMBTR and SHKZG.
My question is how can I know what is the calculation logic used to get the data to DMSOL filed.
Is the logic defined in function module?.... All the above mentioned fields are SAP deliverables(standard).
Thanks in advance,