# Siblings metafields

> Feature introduced in Broadcast v3.5

There are two product metafields definitions required to connect each of the products together and generate linked swatches.

Use the metafields editor under **Settings** in the Shopify Admin:

<figure><img src="https://content.gitbook.com/content/j8jzXN4KKXAfQhgbN5lO/blobs/MMcVAv7xAVXZodg9IIeh/Screen%20Shot%202022-10-06%20at%209.03.44%20PM.png" alt=""><figcaption></figcaption></figure>

Both metafields will be defined under the category of Products:

<figure><img src="https://content.gitbook.com/content/j8jzXN4KKXAfQhgbN5lO/blobs/3Je5qRtAhnrHuOTOO26e/Screen%20Shot%202022-10-06%20at%209.02.07%20PM.png" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Tip: If you are new to creating custom metafields, a good step-by-step walkthrough is also available in the [Upselling with metafields](https://broadcast.presidiocreative.com/broadcast-v5/promotions/upselling/upselling) article.
{% endhint %}

Next, create these two metafields:

{% content-ref url="siblings-color" %}
[siblings-color](https://broadcast.presidiocreative.com/broadcast-v5/siblings/product-siblings/siblings-color)
{% endcontent-ref %}

{% content-ref url="siblings-collection" %}
[siblings-collection](https://broadcast.presidiocreative.com/broadcast-v5/siblings/product-siblings/siblings-collection)
{% endcontent-ref %}