QuickBooks Online Sync Error: Missing object from QBO. Expecting qbobill with id: XXXX

Why the Sync Error occurs

This error occurs when a bill being paid, updated or deleted is no longer linked between QuickBooks Online (QBO) and Bill.com.

How to Fix the Sync Error

Either manually mark the bill as paid, update or delete the bill in QBO manually, or contact Customer Support to re-establish a connection.