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QuickBooks Online Sync Error: A related object (vendor/customer/account/item) does not exist in Bill.com. Please ensure these objects are created/synced or resolve any sync errors for these related objects first.

Error

A related object (vendor/customer/account/item) does not exist in Bill.com. Please ensure these objects are created/synced or resolve any sync errors for these related objects first.

Explanation

This error occurs when something on a bill or invoice that is trying to sync from QuickBooks Online (QBO) to Bill.com has either been deleted from Bill.com, never synced to Bill.com, or the connection has been broken. This can be any item related to the transaction such as accounts, items, classes, customers, vendors or the invoice/bill itself.

Solution

Check the chart of account(s), items, locations, classes, vendor and any employees on the bill to make sure they are not deleted or missing. 
  • If deleted: reactivate in Bill.com.  Once that is done, click edit then save the item in QBO to force a sync update, then sync in Bill.com to re-establish connection.
  • If the item does not exist in Bill.com: click edit then save the item in QBO to force a sync update, then sync in Bill.com to push the item over.
 
If everything on the bill/invoice is active and this error persists after ensuring that the items are in Bill.com, or the fixes above do not work, contact Customer Support.