1.  Log into Fundware with the business date the obligations need to be voided with. 
2.  From Accounts Payable, click Open, and click the Invoice folder. 
3.  Highlight the obligation to be voided by clicking on it.  If multiple obligations need to be voided, hold the Ctrl key down while clicking on the obligations, to highlight all of them at once. 
4.  Click Void at the bottom of the screen, and click OK. 
5.  Click the box with the plus sign next to the Invoice folder and click the Voided folder. 
6.  Click Post.

Create a new invoice with the correct vendor and post it.