The Alteryx Download tool cannot construct true multipart POST requests where each part has its own Content Type because:
- It treats the request body as one serialized payload
- It applies one top level Content Type
- It does not give you control over per part headers or boundaries
- Multipart encoding is not streamed or boundary‑managed dynamically
This is a limitation of the Download Tool. Enabling the download tool to be able to handle multipart POST requests would allow users to work with APIs that have multiple content types, such as those with both JSON and forms in the same request.
