I already have the default setting that prevents an invoice from being entered twice, but is there a way to extend this to prevent duplicates across all companies in our system? Almost all of the bills that come to my office are addressed to 1 company name, not the proper company that we send checks from.

For instance, most bills are addressed to Company A, but we may write checks from Company A-Z. A bill arrives addressed to Company A, someone writes a check from Company B and enters it into Accounts Payable for Company B in Sage. Then while the check is en route, a duplicate bill arrives claiming that it was never paid, and someone else in the office unknowingly enters the same invoice into Accounts Payable for Company A.

Is there a way to prevent this?