Hi,
for this purpose you have to do the following steps,
1) by using export (your data object) to memory id 'XYZ' in your zreport export your data.
2)at enhancement level you have to submit your zreport with key word submit (plz go through documentation of SUBMIT)
submit zprogram via selection screen and return. (if you have any selection screen)
3) after submit write import (data object) from memory-id 'XYZ'.