@Deadwood Al
"The question actually came up when I applied a payment to two separate invoices, each recorded to a different class. The payment didn't even offer a chance to associate the payment to a class, and the deposit only allowed associating to one class."
If these aren't prepayments then why would you need to assign a class to a payment received or the deposit - you should have already assigned the class to the invoice(s)?
"then why isn't the class assignment on the paid invoice carried forward to the deposit screen?"
Again, because all class assigning was done on the invoice. What if you're making a deposit that includes payment on multiple invoices containing multiple classes and from multiple customers? If you could assign another class to the deposit, that would create conflicting data. As it is, assigning it to each invoice is sufficient. Also, if you could change the class on a payment received, then you would have conflicting classes based on accrual vs. cash reports.
