SAP ABAP Question:
What are differences between At selection-screen and At selection-screen output?
Answer:
AT SELECTION-SCREEN event is triggered in the PAI of the selection screen once the ABAP runtime environment has passed all of the input data from the selection screen to the ABAP program.
AT SELECTION-SCREEN OUTPUT - This event block allows you to modify the selection screen directly before it is displayed.
AT SELECTION-SCREEN OUTPUT - This event block allows you to modify the selection screen directly before it is displayed.
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