I am working on an integration trying to initialize against a PO to create vendor bill’s which are coming from an invoices in another system (procore). I have 3 total invoices that equal up to the total PO in Netsuite which should create 3 vendor bills. When syncing the integration to create the first vendor bill things work fine. The issue comes when I attempt to sync the second invoice. So far 1/3 of the total amount of the PO has been billed but when attempting to create the next vendor bill it only allows a small $$ amount to be billed and then marks the PO as billed in full. 2/3's of the PO still has not been billed so I have no idea what is going on. I need some suggestions on what to do.

What is the quantity on the PO line vs. the invoice lines - if I recall correctly the PO will close based on either the quantity of the lines being met, or the $ amount.

Its an expense tab so its only amount based billing