Hi Acrylon
You can use whatever date you want when you enter a cash receipt.
You do realize that the "average days to pay" figure in Adagio is bogus for a number of reasons. Just to give three: 1) when you run Year-end, it summarizes all transactions, so that when the next transaction is paid, it has the same weight as all previous transactions put together, 2) an invoice that is never paid doesn't factor in, 3) a $10 invoice that is paid immediately has the same weight as a $10,000 invoice that is paid in 180 days.
The accurate method is to create a custom report using Crystal Reports.
Steve