Hi all,
I am currently on Product version 10.0.14.
I processed a prepayment journal (SO number was entered at Payment reference field). The prepayment button was grayed out on SO. FYI, I was able to process prepayments on 10.0.7.
1. Prepayment with SO number

2. SO Prepayment

I tried to use settlement but it doesn't get included in Total balance until it is invoiced. It is tough to see order balance.