BEx Experts here,.
How to make BEx Analyzer shows error msg based on user wrong input? Someone told us to just write sth in the CMOD user exit code, but we have no idea how to write such code in the user exit, e.g., IF I_STEP EQ '1'. ? or no any STEP? or place the error msg into the statement like APPEND L_RANGE TO E_T_RANGE.? or in Exception?
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Kevin