We want to void an invoice (Invoice A) but repeatedly get a message that there is an outstanding unposted invoice (Invoice B) against the sales order in question and that this Invoice B must be posted before voiding Invoice A.  However, I can not find the Invoice B, invoice # any where in the database files.  When I try to print Invoice B, the system tells me that it does not exist.
 
Suggestions on how we eliminate the system belief that Invoice B exists and must be posted?
 
Kim V