Project expense acount generator - cross charge transaction

Hi,

We have customized the project expense account generator and its working fine for normal project expenses . The account code combination is getting derive as per the the logic incorporated. But when it comes to cross charge transactions related to expenses, the default expenses of the employee is getting picked and not our logic.

As per my understanding when ever we submit an expense which has got a project number, the project expense account generator gets called. Can you please let us know, why its not getting called for cross charge transaction. An US employee entering time in a Canada project. Is there any other way of calling the project expense account generator or is there a limitation to cross charge transactions.