Hi Mavis,
There are two ways that Adagio OrderEntry assigns invoice numbers - manual and automatic. If when posting the invoice with 'manual' document numbering, you type in an invoice number that exists in History, you will receive an error that the invoice number is in History and you will be prevented from saving that invoice with the duplicate number.
If you use the automatic document numbering, this sort of verification does not occur. This means that if the 'next invoice number' stored in the Company Profile happens to already be in history, then the post process will not check for duplication and indeed a 2nd instance of that invoice will be created. Note that if the invoice is still in Current, the automatic invoice number gets bumped up to a new unique number.
How could this have happened? One of two possibilities:
1) On Aug 25, 2007, the invoice number was overriden from the 'AUTO' entry to a particular number, and now through the usual processing your invoice sequence has caught up to it.
2) The Company Profile was edited and the next invoice number was changed to one that had already been used.
Essentially at this point, you are stuck in regards to keeping the duplicate OE invoice from Aug 2007. This will have no effect on the AR customer balance for that old customer. You have to perform Day End on the newer invoice in order to get it into AR and update that customer balance (and GL).
_________________________
Regards,
Softrak Tech Support