How to get current the Content ID

How to get current the Content ID when task action.
I am trying to use the dynamic TakeSecureFixletAction parameter.

TakeSecureFixletAction(Relevance('id of current fixlet'), Relevance('id of current bes site'), "Action1", params, secureParams);

You don’t need it. The relevance statement are designed to populate it dynamically, so if you are to create a copy fixlet or add it to different site/environment it will just work. If you want to hardcode it just get it from the “ID” field but not that those copies/etc will not work cause you’ve hardcoded it.