Field Exit for Z Program

Hi Gurus,

I have created a Z program with a MARA-EAN11 data element field which is necessary to read MARA table and return its material code (MATNR) in a text field after ENTER key pressed.

It was created also a Field Exit called FIELD_EXIT_EAN11 and it is working fine in test mode (SE37), but when I try to trigger by ENTER key in my Z program, it is not being executed.

What Am I doing wrong?

Thanks,

Michel Khouri