need find delivary address by plant level in me21n by plant level

Hi abapers,

Here my issue is :in my project,  plant address had changed to city address (new) from old city address.

here we maintainte 2 servers . 1.velocit

                                                  2. fusion

in velocity server while creating PO(ME21N) , when we give plant the new address has came in item level in delivary address tab

my issue came here

in fusion while creating PO(ME21N) , when we give plant the new address has not came in item level in delivary address tab the old address is coming , it shd come new address( what we change nw plant address from old address)

how to debug me21n in that so many includes are there which one is suitable' include' for delivery address (in item level) by plant to debug.

plz suggest me abapers