I have the next issue:
Post a payment through transaction FPE1.
When I try to post a payment with a main and subtransaction the next error FKKFMCHK030 Down payment/payment on account not relevant for update don't let me to post it. I already made the follow configuration:
Maintain Main Transactions
App Main Description
P 0220 Payment
App Main Sub Description Payment
P 0220 0465 Interest Payment X
Also Fund Management is activated.
Is there some configuration that I miss??? or does I need to activate something else??