> ## Documentation Index
> Fetch the complete documentation index at: https://help.getvero.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Using arrays in your emails

> Loop through arrays of data like product lists in your emails using Liquid templating.

Vero allows you to refer to properties stored against a customer using the Liquid templating language, these are commonly referred to as merge tags:

`{{ user.first_name }}`

Likewise, if you track a property with an event, you can reference it with:

`{{ event.product_name }}`

However there are many cases where you will want to use complex data, such as an array of products, in your outgoing emails.

## Passing the array

If you were to track the following:

```
<script>
      _veroq.push(['track',{ products: [ {name: 'Item 123', price: 10},  {name: 'Item ABC', price: 20} ] }]);
    </script>
```

You could reference the array in your email using [Liquid templating](https://github.com/Shopify/liquid/wiki/Liquid-for-Designers) as follows:

```
{% for product in event.products %}
      {{product.name}}: ${{product.price}}
    {% endfor %}
```

**Note** : that you can store arrays as both customer and event-level properties.