Need to create sales out of purchase order using idocs
I have a requirement to create sales order based on purchase order with in the same sap system and same client(using orders04 idoc type).I have some doubts below could you please some body clarify?
I know the basic steps in ALE(theritical knowlege)but I need clarifications for below questions.
1)Which tehnology I should use here ALE or EDI?
2)With in the same client how can I create 2 logical systems.
3)How the idoc will go the recevier I mean what all are the ways to trigger outbound idoc from sender side.
4)Inbound side how the sales order will create based on the inbound idoc?Is it automatic from inbound settings or we have to do anyting for this?
5)I need to check some conditions with the inbound purchase order data before creating sales order.I think this one we can do in the user exit of inbound function module .Can I control the type of document that it has to create(ex sales order based on some condition or quotation based on some other condition).