AR 8.0B - this doesn't make any difference for this question.
Applying a posted check or a credit balance to a posted invoice in AR CASH. In this case, we let Adagio generate the Check number (77-2). This turns out to be a duplicate against the historical data. How is the artificial check number generated (77-2) and why doesn't the system check for duplicates? Is the number 77-2 something like the posting journal number and the entry number? Yes, we retain a lot of history but so what - the duplicate is from 2006.