> For the complete documentation index, see [llms.txt](https://docs.premsoft.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.premsoft.de/en/plugins/back-in-stock-notification/advanced-version.md).

# Advanced version

The Advanced version of the Stock Reminder plugin is purchased via an In-App Purchase in the Shopware Store. It removes the limitations of the free version and unlocks additional features.

## Free Version

The free version includes all core features of the plugin:

* Notification form on product detail pages and product listings
* Double opt-in process
* Email delivery via the Flow Builder
* Automatic sending when products are back in stock
* Per-sales-channel configuration
* Dynamic product groups for display and notification conditions
* Subscription management in the administration area
* Automatic cleanup of old entries
* Store API for headless projects

**Limitation:** A maximum of 10 active subscriptions at a time. Once the limit is reached, the notification form is hidden in the storefront and new subscriptions via the Store API are rejected.

## Advanced Version

With the Advanced version you additionally get:

* **Unlimited subscriptions** – No restriction to 10 active entries.
* **Statistics** – Full access to the Statistics tab in the management dashboard with key metrics and trends over time.

## How to Upgrade

You can upgrade to the Advanced version directly from the administration area. In the Subscriptions tab or the Statistics tab, you will find an "Upgrade now" button that takes you to the In-App Purchase.

After purchase, all limitations are removed immediately.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.premsoft.de/en/plugins/back-in-stock-notification/advanced-version.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.