SAP Note 18487 - Displaying fields ready for input in lists

Symptom:

When setting up a list, fields ready for input (FORMAT INPUT) are displayed that are empty at the time of the output. The lines with these fields are not displayed in the list.

Cause and prerequisites

All fields that are displayed in this line are "empty" (contents SPACE) As a result, these lines are automatically suppressed (standard setting: SET BLANK LINES OFF = Suppress blank lines).

Solution
SET BLANK LINES ON in the ABAP/4 program changes the setting: blank lines are no longer suppressed.