Hello,
I'm new to power automate, and I'm trying to build a flow where everytime a form gets a response, a sharepoint's existing document change its properties based on the form's response. Here's the flow:



If I manually type the document's name at "get file metadata"'s file identifier instead of "variable".docx, the flow actually works without any problems, but if I use that dynamic content to it (one of the form's responses), I get the following error (the document I'm trying to update is titled "test.docx":

I'm guessing it's a logic error on my part? I can't tell what's wrong. If someone could help me, I would gladly accept it.