Hi @Vinay.Kumar,
Can you please share what documentation you were reading your listed steps from please?
I sent you a private message and shared some additional resources with you when you first posted this, can you confirm if you got it?
We have this Knowledgebase article that covers ServiceNow integration, please let me know if you find it helpful: https://community.appdynamics.com/t5/Knowledge-Base/How-do-I-use-AppDynamics-with-ServiceNow/ta-p/30095#Implementation
Regarding your question about "APPDYNAMICS_SIM_ENABLED" I found this piece of documentation, which refers to Server Visibility. You can read it here: https://docs.appdynamics.com/display/PRO45/Enable+Server+Visibility
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