1. take one dataset as distinct of customer ID NOTE: this field should contain unique data
2. take 2nd dataset where this 1st dataset column customer ID should pass as a parameter
3. click on schedule icon of 1st dataset > go to grouping tab > mark grouping checkbox
4. select group key as customer ID
5. from the child DS list select 2nd DS created
6. in child DS parameter > select customer ID in the column to the link list
7. click on the schedule
8. check request section and validate request is executed successfully
9. refresh DS section and find stash created > open stash and go to parameter > give ID 103 and click on the preview
10. order data with 103 customer ID will be displayed.