Make sure you are comparing the same input
A phone app may trim, crop, or otherwise prepare content before submitting it. Your scheduler may receive the exported file directly or fetch it from a hosted URL. A native success therefore does not establish that the unchanged source file meets the API path's requirements. Save the exact file used in the failed attempt and note whether the successful native version involved any editing or conversion.
Record the actual container, video codec, audio codec, dimensions, duration, and file size. The filename extension alone is not a media inspection. Renaming a file to end in .mp4 does not convert its contents. If the exported file already has broken audio or framing, repair it before investigating network delivery. Otherwise you may solve the upload while preserving a poor-quality result.
Separate four layers of compatibility
First check the identity: which account is connected, and does that operator have the required API authority? Second check the payload: does the format meet the relevant endpoint's restrictions? Third check transport: can the platform retrieve the bytes? Finally check completion: does the chosen route publish publicly or hand a draft to the creator? Each layer can fail independently.
TikTok's media guide provides a transport example. For PULL_FROM_URL, the media must use HTTPS, avoid redirects, remain accessible during the download, and belong to a domain or URL prefix verified for the developer application. A link that opens in your signed-in browser does not prove those conditions are met. When the publisher owns that hosting path, its support team may need to resolve the problem.
| Layer | Question | Useful evidence |
|---|---|---|
| Account | Is this identity authorized for the API? | Account ID and permission message |
| File | Does the actual media meet this route's rules? | Media properties and exact error |
| Transfer | Can the endpoint receive or fetch the bytes? | Upload status or URL response |
| Completion | Is native action still required? | Publishing mode and current state |
Use one controlled test instead of repeated guesses
Start with a short, harmless video you own and a documented supported route. Keep the account and publishing mode fixed. If that succeeds, compare its properties with the failing file and change one meaningful property at a time. Record each attempt so you can distinguish a format correction from a temporary recovery. Do not treat a single successful retry as proof of a universal encoding rule.
YouTube exposes a separate account boundary: users invited through channel permissions cannot access YouTube APIs, even when they can upload through supported native surfaces. Re-exporting a video will not fix that restriction. Confirm the authorized identity with the account owner and publisher, then reconnect through the supported path. Do not use password sharing as a substitute for understanding the permission model.
Know when the publisher needs to investigate
Escalate when a supported file fails consistently with an endpoint, transfer, or permission error you cannot control. Give support a timestamp, selected account, workflow, file properties, exact error, and whether the native app altered the file. Ask which stage rejected the operation. That question is more actionable than asking whether the product supports the network in general.
For Ferryman, check the relevant integration and the specific create, schedule, or sync flow rather than assuming native features map directly onto automation. If your release needs a native-only editing option, an appropriate handoff may be the right workflow instead of direct publication. Finish by checking the destination post and media quality. Acceptance of a file is only one part of a successful publishing result.
Sources & further reading
Written by Ferryman. Sources checked Oct 16, 2026. Platform rules can change; consult the linked documentation for current requirements.