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how can i validate the input fields

Jul 26, 2017 at 07:17 AM


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i wanted to ask when selection screen in empty so i can check if input is blank so all user shown and if input is given so user shown according to the range.

so i can validate it.

"its my code "

if so_user is INITIAL.
so_user = 'All'.
bkpf-usnam = so_user.

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