R12.1.3 Issue when interfacing invoices to AR from Project Billing - Brazilian localizations

Hello,

Is anyone using Project Billing interfacing to AR with Brazilian localizations?

We are facing some errors in Autoinvoice specific to the Brazilian localizations:

Transaction Flexfield: PROJECTS INVOICES: 675993.5.675993.19119.119 Brazil Contractual P.System, Project Manager.         1.Line

Type                 Bill to Customer Name                    Item Description                         Currency               Amount
-------------------- ---------------------------------------- ---------------------------------------- ----------- -----------------
Invoice              MARQUES LOPES LTDA                       Milestone                                BRL                 2,500.00

  Errors:   1) Please set up a valid organization class for the inventory organization location associated with this record.
            2) Required Parameter Missing: Transaction Condition Class

Has anyone faced this before?

I would appreciate a fast reply as we are already delayed with the go live because we cannot interface invoices to AR coming from projects module.