Whenever a Vendor Code Number is changed in Control Professional, a record is kept of what it was, who changed the entry and what time it was done. This can be reviewed in the Vendor Code Number Changes browser.

From the menu select File, Accounts Payable (A/P), Browsers, Vendor Code Number Changes.

 The database itself is a handy tool to audit who and when changes were made. Even if the original vendor is eventually deleted from the system, the changed records will still be able to be seen in this window.