@MichelleDiaco Are you on mobile or desktop? On mobile, you go to your story and go to "edit", then you see your title, summary, tags, story category, copyright, and "more info". Tap on "more info" and it'll have a box you can tap to mark the story as completed. On desktop, go to your story and click it. It'll have three options at the top, "story details", "table of contents", and "story notes". Go to "story details" and you'll see your fic title, summary, tags, etc. Go all the way to the bottom and there will be an option to mark the story as completed.