Hi Engineer Waseem,
I think both courses (Intermediate and PPE) are teaching concepts, not steps. So, if you understood the concept of using power query in the PPE course, then you can apply it to any project.
To answer your question, please tell me which lesson of the PPE course you think can’t be applied in the intermediate. Also if you provided your Excel sheet that has the data and the queries that don’t work, it will help a lot too.