# Developer Javascript Events

If you are a developer, and want to use our app for custom functionality, you can access the following event.\
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jtcVariantLocationsLoaded

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Listen to this event. Once fired, you can load `jtcProductInventoryInfo.data.variants` object to read the location data.<br>

If you require technical assistance, we recommend reaching out to some of the [Shopify Experts](https://experts.shopify.com/).