I just submitted multiple Shopify app .

Here's everything I learned that the docs don't clearly tell you.

1. Screencast video is REQUIRED — not optional

I assumed the demo video was a "nice to have." It's not. You literally cannot submit without a screencast URL (YouTube, Vimeo, or Loom). Plan for this before you open the listing form.

Keep it 60-90 seconds: install → enable → core feature working. Upload as unlisted on YouTube.