Inter-company specificities: In the case of an inter-company or inter-site order, the invoicing site is initialized to the site associated with the bill-to customer defined in the customer record for the purchase site. The invoicing site can be modified on the condition that it is associated with a customer. At the time of the sales order generation, the bill-to customer and the pay-by customer will be initialized to the customer associated with the invoicing site entered. In the case of a modification, the sales order will automatically be updated.