how to call VL31N by passing parameters of an inbound already created

Hello,

i want to create a copy of an inbound delivery with the possibility of changing it.

Here my problem step by step:

i have an inbound created from POs.

i want to create a specific transaction that creates a copy of the original inbound with having the possibility of changing it.

Currently, i am using FM 'GN_deliv_create' to create the copy and after that i am calling vl32n to change it.

this is wrong.

i want to change the copy while creating it, not to create it and then change it.

thanks,

Meriem.