Thanks for the response Alice!
Basically my requirement is to pull Quotes from Dynamics CRM and send an email to Owners, while sending I need to group the Owners so that I will consolidate the records and send one mail at a time to respective owner.
I have started with the implementation by grouping and got strucked.
@v-alzhan-msft - As you mentioned, i've evaluated the expression seperatly without UNION operation, still getting null.


Here is my full configuration,

