This has become a BIG problem. Here's our issue: Invoice total $1200 Customer pays $500 partial payment/deposit with credit card online so balance is $700. When we send the invoice for final payment QB is applying the initial $500 payment to the $700 balance (not the $1200 invoice total)so customer can only pay $200 of the remaining $700 balance. We've tried everything including manually entering payment and nothing works. PLEASE advise if there is a solution. This has become a significant issue for us and affecting our ability to collect payments in full.