in case of automatic user defined transportzone determination I found out which BADIs are triggered in which events. (Save, Enter, OnChange, etc in Address Dialogs VD, XD etc) .
No it's really important to solve my problem to know how to initialize the SAP Standard Transportzone field. (KNA1-LZONE) via BADI
I'm delivering the correct choosen tzone, and I choose it after there is a change in customer data (Changes in the fields: PLZ, Countrykey). The Badi CUST_ADD_DATA->Check_all_data delieveres the input data from the dynpro form and depending on it I'm calling a function module.
But how can I assign this value back to dynprofield.
No mod and no global assign are allowed...yet.
Thx for help