QuickBooks Online sync error: The purchase cannot be deleted as it would make the invoice, it is linked to, blank

Why the sync error occurs

This error occurs when a bill with billable line items is updated in Bill.com after the bill has synced to QuickBooks Online and the invoice for the billable item(s) has been created in QuickBooks Online.

QuickBooks Online doesn't allow changes via sync to bills after the bill has synced to QuickBooks Online and the invoice for the billable item(s) has been created in QuickBooks Online.

How to fix the sync error

Manually update the bill and invoice in QuickBooks Online and contact Customer Support to remove the error.