Error message to be thrown when multiple enteries are not entered

Question

Hello Guys,
I have used a select-options with no intervals in the selection screen.
If the user enters one value in the range, its working.
But I want a error message to be thrown when only one entry is entered. User should enter more than one entry always.
I used low and high but its not working.
Kindly guide me.

Answer 1

No intervals only works on the main screen.  If the press the right arrow and go to the ADDL choices, they can choose the entire database table in a single range....Your test is, therefore, too simplistic.  If you want to limit this on both the main and the additional choices screens, you have to implement Function Module SELECT_OPTIONS_RESTRICT in the Load-of-Program or Initialization event.
Why not select from a table into a work table where the values are IN the select-options and see how many the user obtained?
Something like this:
Select <your field> from <your table> into table <your internal table>
where <your field> IN <your select-options>.
  if lines( <your internal table> ) lt 2.
    <your error message>.
endif.