Cross charge expenditure item on Project with Provider BU different from Receiver BU but same LE's

Summary:

I have a case scenario when Expenditure BU is different from Receiver BU but the Legal Entities are the same. Employee's assignment is on BU1 and Project is on BU2. Legal Entity on the Employee HR Assignment is the same than the LE on the Project. I have allowed the transaction Flag for Other Business Units on the Project Settings.

I would like both a technical answer and a Business answer.

1- is this considered as Cross Charge transaction by PPM?

2- If it is a cross charge, assuming that the project is billable, can i bill that cost through an intercompany contract ? (which means that it is possible to create an intercompany contract with a Provider LE and Receiver LE being the same)