@Erin_Finnegan Thanks for your response.
I’m familiar with the API to load a library element.
Big questions is what is the element identifier in the webhook notification which allows me to call them method "Retrieve a specific Library’s element”? I can’t find any id which matches with the element id needed to load the specific element.
Using "Retrieve the Elements within a Library” with sorting via modified_date and using the first element doesn’t seem like a proper solution. => Only works if no other modification occurred in the meantime.