display message on variable screen

Hi All,

I want use to input value for only one of the two variables and not both. I am using below FM but message is not being displayed.

I have added this code for step 3.

CALL FUNCTION 'RRMS_MESSAGE_HANDLING'

EXPORTING

I_CLASS = 'RSBBS'

I_TYPE = 'W'

I_NUMBER = '000'

I_MSGV1 = 'Year cannot be blank.'

EXCEPTIONS

DUMMY = 0

OTHERS = 0.

can anyone help on this?

regards,

purvang