- login via web
- go to the sales tab
- click invoices
- sort by the proper date
- choose an invoice
- use the "edit" button by the providers name to change the provider associated with that product or service
- once complete you will be a green box pop up saying that the change it complete
- hit the X on the left corner and you are done!
Important! The invoice can only be changed within 7 days. After the 7 days passes, the invoice will become locked and no further changes can be made.
Also, make sure that you are granted accurate user permissions to edit.