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QuickBooks Online Sync Error: You must specify a different number. This number has already been used.

Error

 You must specify a different number. This number has already been used.

 

Explanation

This error occurs when the reference number (Ref#) on a Bill.com offline payment is already in use in QuickBooks Online (QBO) or has been entered on a payment that is for more than one invoice.

 

Solution

  • Go to Payables>>Payments
  • Click History at the top
  • Locate the payment with the error and click the Payment Confirmation #
  • Click the the edit icon  on the top right and enter a unique Ref # that is not already in use in QBO and save.
  • If you are paying multiple bills with one offline payment, please remove the Ref # completely
  • Sync again

 

Alternatively, you can record the payment manually in QBO, and contact Bill.com Customer Support via chat or email to clear the sync error.

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