# Page Not Found

The URL `admin-apis/subscription-management/assigning-a-perpetual-unit-price` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Adding or updating a perpetual unit price](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/update-the-subscription-at-the-next-renewal/adding-or-updating-a-perpetual-unit-price.md)
- [Using the Expired Card Optimizer](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/using-the-expired-card-optimizer.md)
- [Retrieve the subscription](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/retrieve-the-subscription.md)
- [Immediately apply a midterm subscription change](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/immediately-apply-a-midterm-subscription-change.md)
- [Subscription management](https://docs.digitalriver.com/commerce-api/admin-apis/subscription-management.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://docs.digitalriver.com/commerce-api/admin-apis/subscription-management/update-the-subscription-at-the-next-renewal/adding-or-updating-a-perpetual-unit-price.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://docs.digitalriver.com/commerce-api/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.digitalriver.com/commerce-api/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., `/commerce-api/admin-apis/subscription-management/update-the-subscription-at-the-next-renewal/adding-or-updating-a-perpetual-unit-price.md`).

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