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QuickBooks Online Sync Error: Unknown error on sync. ERROR CODE:2010, ERROR MESSAGE:Request has invalid or unsupported property

Error

Unknown error on sync. ERROR CODE:2010, ERROR MESSAGE:Request has invalid or unsupported property.

 

Explanation

This error occurs when certain AR invoices are preventing the sync from completing.

 

Solution

Contact Bill.com Customer Support, and we will troubleshoot this error for you.