> ## Documentation Index
> Fetch the complete documentation index at: https://docs.letmepost.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# pinterest.media.register_failed

> Pinterest refused to register a video upload slot.

## What it checks

`POST /v5/media` is the first step of Pinterest's video flow. If it returns non-2xx, no presigned URL came back, or the response shape is malformed, this rule fires.

## Why

Most often this is a missing scope on the connected account: the OAuth grant predates `pins:write` / `boards:write`, or the user revoked the scope on Pinterest's side. The upstream message is opaque ("not authorized") — preflight maps it to a remediation that mentions the scope set explicitly.

## Failure response

```json theme={"system"}
{
  "error": {
    "code": "platform_rejected",
    "rule": "pinterest.media.register_failed",
    "platform": "pinterest",
    "message": "pinterest rejected the post: insufficient_scope.",
    "remediation": "Pinterest refused to register a video upload slot — most commonly missing the boards:write / pins:write scope on the connected account."
  }
}
```

## Remediation

* Disconnect and reconnect the Pinterest account from the dashboard. The reconnect re-requests the current scope set, including any added since the original grant.
* Confirm the account isn't on Trial Access pointing at production. See the platform notes — Trial Access apps must use `https://api-sandbox.pinterest.com/v5` until Standard Access clears.

## Related

* [Pinterest platform docs](/platforms/pinterest) — full scope list