Can’t append text to existing drafts using the Add to Draft action in the Shortcuts app

Hello, thank you for your explanation! I explained in one of my replies to another user what I am trying to accomplish. The Drafts Action and Shortcuts shortcut I gave as examples in my original post didn’t make any sense because I was trying to make my question simple and clear so I removed the steps unrelated to this issue.
Coincidentally, I saw your TIP post several days ago about inserting the result of a shortcut in current draft, which provided a perfect solution to my problem. The [[shortcut_result]] tag is extremely useful and powerful, thank you so much for your tip!