QuickBooks Online sync error: Vendor Credit Ref # number is already being used in QBO

Why the sync error occurs

This error occurs when a vendor credit in Bill.com is attempting to sync to QuickBooks Online, but the value in the Ref # field is already in use on a vendor credit in QuickBooks Online.

How to fix the sync error

If the credit doesn't exist in QuickBooks Online

  1. Change the vendor credit Ref # in Bill.com to a unique number
  2. Sync again

If the credit already exists in QuickBooks Online or if no duplicate number is found in QuickBooks Online

Contact Customer Support for assistance.