@PratheepArunRaj - I am facing the same issue. Can you please share some details on how to debug the problem? What do you mean when you say 'few pages didn't have the plugin'? When I am checking in debugger for the pages I see in the reports with 'unspecified' New or Repeat values I do see values ag...

I was missing this. Thanks for your answer- I installed the Adobe Client Data Layer extension and it is working now.

Getting null value only. What can be the possible reason for it?

Hello, Thanks for your reply. I am populating the schema through data element.  and then sending the event through rule.  

Did you find any solution or reason? I am trying to implement tracking for an AEM website and am stuck with the same situation.