# Enable product tracking

The first step is to select which product variants you would like to track using serial numbers.

Go to the products page in the app. There you will see a list of your product variants with the following selectable options:

| Option         | Description                                                                                                             |
| -------------- | ----------------------------------------------------------------------------------------------------------------------- |
| Track items    | Track every individual item of the product variant using a serial number.                                               |
| Track warranty | Track each sold item's warranty. Enter the default warranty duration for every product variant you would like to track. |

{% hint style="info" %}
You can override the warranty duration for each item on the "Serialize items" page via the "Edit items" menu. The expiry is automatically calculated from the order date.
{% endhint %}

![Set variant tracking properties individually](https://dyk0l9a1ledth.cloudfront.net/public/images/set_single_variant_props_compressed.gif)

If you have many variants with the same tracking configuration, you can select and edit them via the **"Set variant properties"** action.

<figure><img src="https://dyk0l9a1ledth.cloudfront.net/public/images/set_multi_variant_props_compressed.gif" alt=""><figcaption><p>Set variant tracking properties in bulk</p></figcaption></figure>

1. Select product variants you'd like to edit.
2. Optionally, if you wish to edit more product variants than displayed on the current page, please "**Select all 25+ product variants**" at the top left. This will select all product variants matching the [query](https://shopify.dev/docs/api/usage/search-syntax) entered in the "Filter product variants" search bar at the top. If no search query entered, all store's product variants will be selected.

<figure><img src="https://462855324-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fzhu3c9RXL4n7dptouWbv%2Fuploads%2FwejJ7xegSd4JWNrOKD74%2Fimage.png?alt=media&#x26;token=b96dbc3a-40e3-47ae-b3d0-8cde14007885" alt=""><figcaption></figcaption></figure>

<figure><img src="https://462855324-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fzhu3c9RXL4n7dptouWbv%2Fuploads%2F4OxWAhxlVN40b2N6wL7r%2Fimage.png?alt=media&#x26;token=4f6a3bf2-e6aa-49ad-9079-731d102314bd" alt=""><figcaption></figcaption></figure>

3. Click "**Set variant properties**" at the bottom.
4.  Edit product variant tracking properties in the popup window&#x20;

    <figure><img src="https://462855324-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fzhu3c9RXL4n7dptouWbv%2Fuploads%2FBLY0h0UbuzdWUqZ8e2Oo%2Fimage.png?alt=media&#x26;token=7a5f65fa-16e4-4401-9305-5ac62b0e89fc" alt=""><figcaption></figcaption></figure>

    <figure><img src="https://462855324-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fzhu3c9RXL4n7dptouWbv%2Fuploads%2Fn68vEpTEocldYqgauDuI%2Fimage.png?alt=media&#x26;token=a6c747d4-c856-47a9-ba79-3c9acbc0dc5b" alt=""><figcaption></figcaption></figure>
5. Click "**Save**"

{% hint style="info" %}
It may take a few minutes to update a large number of product variants.
{% endhint %}

{% hint style="warning" %}
Variant properties are saved in the Shopify variant metafield under namespace "serializer" and key "properties". Please do not add custom metafield definitions, or delete or edit existing metafields under the "serializer" namespace, as the app will not function as intended. Learn more about [metafields](https://help.shopify.com/en/manual/metafields).
{% endhint %}

Well done! You're now ready to track your items using serial numbers. Let's jump into the next section.
