Hi @Swapnil_Borse , I was able to get the ecid passed as a data element
and then had it mapped within the xdm data element within field group of
endUserIDs, to populate the mcid id. Followed the below approach : 1.
Created Rule to set populate ECID
(ref#https://experienceleague.adobe.com/docs/experience-platform/edge/extension/accessing-the-ecid.html)2.
Rule set %ECID% using _satellite.setVar3. Map the %ECID% in the xdm data
element as mcid > id 4. Interact response on site cheers!