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How can i disable a selection screen when another one is inputing ?

Suppose user A is inputing something in the selection screen to execute the report, Now user A has opened another session but this time he will not get able to input into the selection screen means I want that whenever one selection screen is enable for inputing no other selection screen will be enable at the same time, It will be disable. How can i do that? Is there any reference has been stored in a table during the execution of the selection screen?

Thanks In Advance

With Regards,

Abhijit

replied

You can use a custom table for this.

In the PBO of the screen just call the function module

' ENQUEUE_E_TABLEE '

If same or any other user tries to open the same screen

the user will get a message

" Object requested is currently locked by user XYZ "

In flow logic of screen write

PROCESS BEFORE OUTPUT.
module lockscreen.

in module

   CALL FUNCTION 'ENQUEUE_E_TABLEE'
   EXPORTING
*     MODE_RSTABLE         = 'E'
     tabname              =  " 'Ztablename'
     varkey               = sperrdat
   EXCEPTIONS
     foreign_lock         = 1
     system_failure       = 2
     OTHERS               = 3
            .
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

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