To expose the Flow to external users:
- Go to Setup → Digital Experiences → All Sites
- Create or open an Experience Cloud Site
- Open Experience Builder
- Add a new page or use an existing one
- Drag the Flow Component onto the page
- Select your activated Flow
- Publish the site
Access URL Example: https://yourdomain.com/s/upload?recordId=001XXXXXXXX
Passing recordId in the URL is mandatory for proper file association.
For a detailed explanation, please refer to: https://satrangtech.freshdesk.com/a/solutions/articles/17000150864