When an output data set is available, you can elect to incorporate this exit to add, delete or change records at the end of Phase 3. In the absence of an output data set, this exit has full responsibility for output processing and, under normal conditions, will delete every record passed by the sort.
E35 record processing has these constraints:
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If a record is to be changed, it should first be moved to a work area.
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The exit program may not destroy the contents of the parameter list.
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A user exit may not take checkpoints.