How To Make A Mandatory Fields Using ABAP

When you create a field in ABAP whether it’s using SELECT-OPTIONS or PARAMETERS and want to make the field to be mandatory, then you can use the keywords WITH OBLIGATORY.

Here’s the ABAP sample code to implement this keyword.

Z_REPORT_MANDATORY_FIELD.

tables:
kna1.

data:
t_kna1 type TABLE OF kna1 WITH HEADER LINE.

SELECT-OPTIONS:
p_kunnr for kna1-kunnr OBLIGATORY.

START-OF-SELECTION.

select * into table t_kna1 from kna1 where
kunnr in p_kunnr.

LOOP AT t_kna1.

WRITE :/ t_kna1-name1, t_kna1-land1.

ENDLOOP.

When you run the program and execute it without selecting the KUNNR field then it will prompt you the message to “Fill in all required entry fields”

sap mandatory field

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