How to add one new tab at item label in me21n

Question

hi experts,
i  am very new in badi .can any one please tell me how to add
one tab in me21n at item label. i already checked  sample code for
badi me_gui_po_cust. i create one implementation and write same code.
this code is coming in debugging mode but cant see that tab while executing 
me21n.
please help me out.
thanks in advance
manasi

Answer 1

Hi Manasi,
acording to me you are on the right path.Some help
1.ME_GUI_PO_CUST.
For Creating Customer own Screen - Purchase Order..
Details :
Go to the sample code of this BADI.
For this create a Function group with the screen that u want in PO.
In the First method u want to append the screen . There is one parameter im_element.
In this parameter u can mention that in which part u want the screen .Header/Item.
2. ME_PROCESS_PO_CUST
In this BADI u can Check the Complete PO at various Level.
ie Header Level ,Item Level, At the time of Save, Post .
Now Create a Include in your Function group and paste the below code.
DATA: call_subscreen TYPE sy-dynnr, "#EC NEEDED
call_prog TYPE sy-repid, "#EC NEEDED
call_view TYPE REF TO cl_screen_view_mm, "#EC NEEDED
call_view_stack TYPE REF TO cl_screen_view_mm OCCURS 0, "#EC NEEDED
global_framework TYPE REF TO cl_framework_mm, "#EC NEEDED
global_help_view TYPE REF TO cl_screen_view_mm, "#EC NEEDED
global_help_prog TYPE sy-repid. "#EC NEEDED
FORM SET_SUBSCREEN_AND_PROG *
--> DYNNR *
--> PROG *
--> VIEW *
--> TO *
--> CL_SCREEN_VIEW_MM *
FORM set_subscreen_and_prog USING dynnr TYPE sy-dynnr
prog TYPE sy-repid
view TYPE REF TO cl_screen_view_mm.
call_subscreen = dynnr.
call_prog = prog.
call_view = view.
ENDFORM. "set_subscreen_and_prog
Hope to solve ur probs.....
Regards
Renu