Why the sync error occurs
This error occurs when a transaction is trying to sync from Microsoft Dynamics 365 Business Central (MSDBC) to Bill.com, but a classification (account, department, job, location, etc.) on the transaction doesn't exist in Bill.com.
How to fix the sync error
Check all the classifications on the transaction and make sure they exist in Bill.com. If they don't, create them in Bill.com with the exact same name as the one in MSDBC, then sync.
If this doesn't clear the error, or you can't find the missing classification, please contact Customer Support to help.