Hello
Now the question is following, when we add a delivery route to PRD from REG will all the transports get added to target system (PRD) buffer automatically?
Correct. This is the expected behavior.
If yes, how will the sequence be, the same way it did import in previous system (REG)?
The same sequence how the transports were imported in the test system. You can check the order in the transport buffer file.
Regards
RB