How to iterate the values in webscreen like for each. i want to list out all mails and respective message one by one populate in web screen.History values will change dynamically based on each user

Hi Ananth,

I'm sorry, but to me your question is totally unintelligible, almost word salad. Could you please try to formulate it differently? Thanks.

Looking at your example are you trying to do a master child display? ie you are displaying the first record of a conversation and then underneath it displaying the other items within that conversation, is that correct? If so you should be able to do it without a "for each", you can use a List Records with an aggregate filtered on just the primary or "Parent" record within the screen preparation and inside the list use a webblock that also has a List Records and an aggregate within its Preparation (use filtered to include just the children of the primary record.