Answer: Make the media publicly fetchable or use proxyDownload/Drive Anyone-with-link sharing. Confirm the URL in a private browser window before retrying.
What this means in a real publishing workflow
Remote media failures usually mean the saved URL no longer returns the original file. Common causes include expired Rednote temporary links, deleted objects, private cloud sharing pages, blocked requests, and redirect chains ending in HTML.
Recommended implementation
- Open the URL without an authenticated browser session.
- Confirm an HTTP 200 response and the expected video or image Content-Type.
- Regenerate expired temporary media instead of retrying the same URL.
- Use proxy download for supported sources that providers cannot fetch directly.
How to verify the fix
A 404 is permanent for that exact URL until the source is regenerated. Retrying Postifys without replacing it only repeats the failure.
Operational check: Test with one item, confirm the final destination and Postifys history state, and only then enable the recurring workflow. Keep the returned Postifys ID beside the source row so every result remains traceable.
Related Postifys resources
API documentation · Error reference · n8n automation guide · Safe retry guide · Compatibility matrix