Functionality
This function module serves as an example for the interface insearch help exits in asearch help, and shows how search helpexists are designed.
All interface parameters defined here are obligatory for a functionmodule that is to be used as search help exit because the caller of thefunction module does not know which parameters are actually usedinternally.
A search help exit is called on numerous
occasions during the F4 process. The relevant step is specified inCALLCONTROL-STEP. If the function module only wants to make a fewmodifications before the step, CALLCONTROL-STEP must not be changed.
However, if the step is applied completely by the function module, thesubsequent step must be specified in CALLCONTROL-STEP.
For more information, see the detailed documentation on search helpexits.
The function module must react to all steps that it does not know ordoes not want to perform with an immediate EXIT.