# 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="/files/TuAxBENU65JhlNLmNVyE" alt=""><figcaption></figcaption></figure>

Both metafields will be defined under the category of Products:

<figure><img src="/files/W5sfTWGW55jz7ABmynA3" 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](/broadcast-v4/upsell/upselling.md) article.&#x20;
{% endhint %}

Next, create these two metafields:

{% content-ref url="/pages/3iiRdyYXtMnZ91WtXtrK" %}
[Siblings color](/broadcast-v4/siblings/siblings-metafields/siblings-color.md)
{% endcontent-ref %}

{% content-ref url="/pages/OqnhhJ6fbBrXGmw50xzc" %}
[Siblings collection](/broadcast-v4/siblings/siblings-metafields/siblings-collection.md)
{% endcontent-ref %}


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