Pass parameters to the report hosted in IFrame or Web Page
Hi,
Assume you have to display related ‘contacts’ of an ‘Account’ in the report hosted in an IFrame.
You can prepare a dataset using below query in the report
SELECT * FROM FilteredContact C
WHERE
C.accountid=@CRM_AccountId
To set parameter ‘@CRM_AccountId‘, you can pass parameter in the URL in this format "&p:CRM_AccountId="={Account GUID}"
Sample URL
var url = Xrm.Page.context.getServerUrl() + “/crmreports/viewer/viewer.aspx?action=run&context=records&helpID=Internal%20Call%20Report.rdl&id=%7bcd80109a-dc7c-e111-a040-00155dc87c64%7d&records=%7b245DB4C3-927C-E111-9FA1-00155DC87C64%7d&recordstype=1+ “&p: CRM_AccountId=” + accountId;
Below is the useful article explained in detail
Hope it helps 🙂
Rajeev Pentyala - Microsoft Power Platform 
Hello ,
I am trying to call the email attachment iframe in email entity from another entity .
I would like to show all the attachments of related emails of a opportunity in a different section .
Do you know how to get the URL of any Out of Box iframe to call from another IFRAME ?
Thanks,
Prasun