Hi,
Copy the sample FM,FKK_SAMPLE_3050 into a custom FM with the following changes-
CALL FUNCTION 'FKK_CORR_SINGLE_CREATE'
EXPORTING
i_cotyp = const_cotyp_instplan
i_vkont = x_vkont
i_gpart = x_gpart
i_opbel = x_opbel
*i_dialog = l_dialog
i_avoid_dialog = 'X'
*i_avoid_dialog_okcode = l_avoid_dialog_ok
EXCEPTIONS
user_cancellation = 1
OTHERS = 2.
I think doing the above, you will not get the Pop-up.
Hope it helps..
Thanks,
Amlan