# Page Not Found

The URL `2026/2026-05-11-product-variants-code` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [2025-12-17: Product Service - classification mixins support](https://developer.emporix.io/changelog/archive/changelog-2025/2025-12-17-product-classification.md)
- [2025-09-24: Client Management Service – added a new contact assignment type](https://developer.emporix.io/changelog/archive/changelog-2025/2025-09-24-contact-management.md)
- [2025-05-26: Cart Service - adding items as separate lines to a cart](https://developer.emporix.io/changelog/archive/changelog-2025/2025-05-26-separate-lines.md)
- [2025-09-16: Client Management Service – new customer assignment propagation settings](https://developer.emporix.io/changelog/archive/changelog-2025/2025-09-16-client-management.md)
- [2025-03-28: Coupon Service - deprecations](https://developer.emporix.io/changelog/archive/changelog-2025/2025-03-28-coupon-deprecations.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://developer.emporix.io/changelog/archive/changelog-2025/2025-12-17-product-classification.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://developer.emporix.io/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://developer.emporix.io/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/changelog/archive/changelog-2025/2025-12-17-product-classification.md`).

You may also use `Accept: text/markdown` header for content negotiation.