Sage Intacct sync error: Illegal format for AR Invoice Detail : Transaction amount null

Why the sync error occurs

This error occurs when a line item amount on an AR invoice is invalid or not accepted to Sage Intacct due to a $0 value for that line item.

How to fix the sync error

  1. Edit the invoice to remove line item with the $0.00 value
  2. Save the updates
  3. Sync