# Product matrix

If the `Payment system` configuration is set to `Yes` without an existing terminal, the coffee machine will send all data to the controller, which acts as a payment device in this case. \
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If the `Payment system` is set to `No`, the coffee machine will not send any data except for error messages. This configuration helps manage data flow and ensures that the machine operates correctly based on the available payment infrastructure.

{% hint style="info" %}
Prices in the product matrix should be included only if you are using a payment terminal. If there is no payment terminal, set the product prices to 0. This ensures that the machine does not attempt to process payments without the necessary hardware.
{% endhint %}

Eversys coffee machines equipped with the latest software versions support product numbering as illustrated in the image below.

<figure><img src="https://3872119397-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnrXt79Zqh1vochrJxgjb%2Fuploads%2FJzf5ychWNzXvTgmUzUw6%2Fimage.png?alt=media&#x26;token=9d2947f9-42d7-4572-b430-a3e09c98cc26" alt=""><figcaption><p>Standard product numbering in the product matrix for Eversys coffee machines</p></figcaption></figure>

### How to configure the product matrix if I have 2 display screens on my Eversys coffee machine?&#x20;

For Eversys coffee machines equipped with dual display screens, an additional configuration is required. Please contact the SmVend support team at **<support@smvend.io>** or via WhatsApp at **+371 28 701 129** to obtain this configuration. Once the configuration is complete, set up your product matrix as follows:

* **Left Screen:** Assign odd-numbered products (e.g., 1, 3, 5, 7, ...)
* **Right Screen:** Assign even-numbered products (e.g., 2, 4, 6, 8, ...)

<figure><img src="https://3872119397-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnrXt79Zqh1vochrJxgjb%2Fuploads%2FzgRpxeANYOj1VlFBHkIg%2Fimage.png?alt=media&#x26;token=d1c8e186-f71c-44fc-a7a0-77032200ed94" alt=""><figcaption><p>Product numbering in the product matrix for Eversys coffee machines with dual display screens</p></figcaption></figure>

### What if I plan to use different sorts of milk in my machine?&#x20;

If you intend to use two different sorts of milk in your products, please contact the SmVend support team for assistance with additional configuration. You can contact them via email at **<support@smvend.io>** or WhatsApp at **+371 28 701 129**.

{% hint style="info" %}
**Please note** that if your coffee recipes differ in more than just the type of milk used, configure the controller as if it is using only one type of milk. This means that the distinction between the recipes is not solely based on the milk type.

The setting for two types of milk should be used only when the drinks differ solely by the milk type, with all other aspects of the recipe being identical. In this scenario, the drinks will appear as the same drink number in the coffee machine's sales history.
{% endhint %}