You are able to associate vendors to a company record within the system. This will allow you to send an invoice to a vendor if needed.
1. Make sure the vendor is listed as a contact. If they are not listed, add them as a contact.
2. Go to the Company record you want to add the vendor to and click on the vendors tab.
3. Select the vendor you would like to add and click 'add selected'.
4. The vendor will now appear in the Added Vendors table to the right.