---
title: "Upload Collateral Version"
method: POST
path: "/marketing/collateral/version"
tags: ["marketing-collateral"]
---

# Upload Collateral Version

`POST /marketing/collateral/version`

Upload a new version of a marketing collateral file.

The security boundary for versioning: `file_id` is chosen client-side, so
this authorizes on the same predicate that decided what to suggest, and an
out-of-scope file is a 404, not a 403 — no probing for other scopes.

## Response `200`

Successful Response

- FileUploadResult
  - `file_id` string, uuid, required
  - `upload_id` string, uuid, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/kobaltlabs/apis/fastapi.md) · [All operations](https://skmtc.dev/kobaltlabs/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/kobaltlabs/fastapi/revisions/3ff4c0bd276b/schema)