Can anyone provides solution k why AAG comes blank for billing document that led to account determination error. ?
There could be a reason that by the time user creating the billing document, in the material master AAG is maintained blank, later that could have been maintained with relevant field in material master.
The sames rule would apply for the customer (if it is header level AAG in billing) as well in XD02
The changes in material master you can find out by going to change log of the material also for the customer in XD02
thanks,
Srinu.