Sage Intacct sync error: Remove the extra line item in the request, then reclassify the bill

Why the sync error occurs

This error occurs when a bill that's been paid in Sage Intacct has been updated in Cashflow360℠ with an additional new line item and the update attempts to sync to Sage Intacct. A new line item on a bill cannot be synced to in Sage Intacct after the bill has been paid.

How to fix the sync error

Manually update the bill in Sage Intacct and contact Customer Support to request that the sync error be removed.