Answer / lakshmi

validation to check out for valid inputs is usually done
under at selection-screen event. when we are doing it in
start-of-selection, its better to use information msgs
rather than error msgs as dese do not allow the users to
navigate to the previous screen to make necessary input changes.

Answer / buddula15

Nothing happend, because start-of-selection triggers after
displaying the selection screen.


Buddula15

Answer / riyaz

if we done validation on start-of-selection we have to handle only 'I' messages along with leave list-processing.if the driver table or select query doesn't have data means it display the message and come back to selection screen.it improves the database performance.

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