Task ID to pass inside Escalation message event under User Input task

Hi all, I have a requirement to send the task link in email when the User Input task is assigned. I am achieving this by sending Escalation -> Send Message Event. I am using "Process to Process" Message Type. Message destination is a separate process. Under Data tab, I am specifying additional text for the message body and passing tp!id. The issue is tp!id is not the actual tp!id of the User Input task, i think it is for sending Message. How can i get the tp!id of User Input task in this case..

OriginalPostID-258730