Transfer custom field in SAP TM between two forms

Hi SAP TM Expert,

I am beginner in SAP TM and i am in face of new development to add custom field (Zxxxxx) in Scheduling form and Freight Order form.

So, i did this new fonctionnality correctly.

Now, i have a new requirement that consist to retrieve/fill automatically the custom field in Fret order form scheduling when i generate freight bookings based on given schedule departures

Program : /SCMTMS/MP_SCHED_CREATE_TOR .

Can anyone help me please to find the best solution for my requirement ?

Thanks in advance,

Aymen