You must determine if the existing vendor can be changed or a new one should be created. Consider the following:

• Is the vendor's tax ID changing? What amount of history should be reported under the old tax ID vs the new tax ID? Will you need to issue government forms (1099s or T5018s) to both tax IDs? See What are the effects of changing a vendor name?
• If you create a new vendor with commitments associated with the old vendor ID, determine if you will need to update the commitments with the new vendor ID. Refer to the article How do I change the job, extra, cost code, category, vendor or original amount on a commitment?
• If the vendor is just adding a DBA (Doing Business As) name, refer to How do I set up a vendor as a DBA in AP?

If you need to change the existing vendor:

1. From the Setup menu, select Vendors.
2. Select the vendor then press the Enter key twice.
3. Change the Name field as needed.
4. For the United States, on the 1099 Settings tab, change the Recipient's Tax ID Number and Recipient's Tax ID Name as needed.
5. For Canada, on the T5018 Settings tab, change the Business Name, Recipient Account Number, and Social Insurance Number as appropriate.
6. Click Save then Close.

If you need to create a new vendor, refer to How do I set up vendors in Accounts Payable?"

If you need to move the balances of unpaid invoices from the old vendor to the new vendor, refer to the article Moving the balance of unpaid invoices to a new vendor ID in Accounts Payable.