I found the reason why I_VNAm is empty at the 3rd step. It is explained here
https://scn.sap.com/thread/1976875
As I had guessed, what I am try to do is not possible with one single variable
I found the reason why I_VNAm is empty at the 3rd step. It is explained here
https://scn.sap.com/thread/1976875
As I had guessed, what I am try to do is not possible with one single variable