I reported via "feedback" and called Live Experts. It took me 2 reps and 50 minutes to get them to understand that it isn't me that has a problem on how to use QB, that truly, QB should not be auto generating duplicate sales transaction numbers! So frustrating. It is now 10 days later, the system still does it. I originally thought that the system thinks pledge and invoice # are an independent track so at least would not dupe within each type.. But not true. The last receipt had to edit to a new number because it was duplicate of an invoice that was already paid with a credit card and I'm scared to edit the sales transaction # of credit card for fear of also screwing up the associated payment. But now the system wants to duplicate the new sales receipt # for a new sales receipt. Quickbooks continiues to get worse with each "new" according to QB release. All you did is move around the navs and make it harder (and more clicks) to get to what you want... Do you have anyone looking at the bigger picture? Appears you just are willy nilly adding/changing and not bothering to test anything!