There are two transactions ZJPVCS303 and ZJPVCS303_US for one single Report

Question

When run as a batch program, (currently this is the case), or withT-Code ZJPVCS303 the selection screen is unchanged (except for additional sales area above)
- When run as T-Code ZJPVCS303_UL (UL stands for Upload) the selection screen is changed.  The unix file option is no longer available, and the user is able to upload a local file (in the same format as the current unix file, but tab delimited) to the program for processing.
Requirements:
There are two transactions ZJPVCS303 and ZJPVCS303_US for one single Report.
->When ZJPVCS303 Transaction is executed, the file is uploaded from the Application
  server to SAP R/3. The selection screen parameters would be:
  Logical Filename:
  Sales Organization:
  Distribution Channel:
  Division:
->When ZJPVCS303_US Transaction is executed, the file is uploaded from the Presentation Server
  to SAP R/3. When this transaction is executed, it should not have the 'Logical
  Filename' parameter anymore on the selection-screen. Instead it should only have
  Local File name on the presentation server:
  Sales Organization:
  Distribution Channel:
  Division:
    The same thing is applicable for the other transaction ZJPVCS303. When transaction ZJPVCS303
is executed, it should not have the 'Local Filename' parameter anymore on the selection-screen. Instead it should only have
Logical Filename:
Sales Organization:
Distribution Channel:
Division:
So how should I make these parameters invisible depending on the transaction codes execution.
I have an idea of using MODIF ID, LOOPING AT SCREEN...MODIFY SCREEN.
I have an idea of using SY-TCODE.
EX:
AT SELECTION-SCREEN OUTPUT.
IF SY-TCODE = 'ZJPVCS303'.
LOOP AT SCREEN.
IF SCREEN-GROUPID = 'GRP'.
   SCREEN-INPUT   = 0.
   SCREEN-INVISIBLE = 1.
   MODIFY SCREEN.
ENDIF.
ENDLOOP.
ELSEIF SY-TCODE = 'ZJPVCS303_US'.
LOOP AT SCREEN.
IF .....
ENDLOOP.
ENDIF.
ENDIF.
But I am not able to get the output which I require. Please help me out.

Answer 1

Hello Rani
Basically the transaction determines whether upload starts from application server (AS) or presentation server (PC). Thus, you will have the following parameter:
PARAMETERS:
  p_as_fil          TYPE filename   MODIF ID unx,  " e.g. Unix server
  p_pc_fil          TYPE filename   MODIF ID wnd.  " e.g. Windows PC
AT SELECTION-SCREEN OUTPUT.
  CASE syst-tcode.
*   transaction(s) for upload from server (AS)
    WHEN 'ZJPVCS303.
      LOOP AT screen.
        IF ( screen-group1 = 'UNX' ).
          screen-input = 0.
          screen-invisible = 1.
          MODIFY screen.
        ENDIF.
      ENDLOOP.
*   transaction(s) for upload from local PC (PC)
    WHEN 'ZJPVCS303_US.
      LOOP AT screen.
        IF ( screen-group1 = 'WND' ).
          screen-input = 0.
          screen-invisible = 1.
          MODIFY screen.
        ENDIF.
      ENDLOOP.
   WHEN others.
   ENDCASE.
Regards
  Uwe