> For the complete documentation index, see [llms.txt](https://docs.goaffpro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.goaffpro.com/how-tos/setup-post-checkout-popup/bigcommerce-custom-popup-integration.md).

# BigCommerce Popup Integration

#### If the Post Checkout Popup is not appearing in the thank you page of the store, follow the steps given below for the custom integration of the popup script:

Go to the **Advanced** section of the **Settings** tab in the GoAffPro admin panel.

![Settings > Advanced](/files/-MBYm7blonUMhm9fsBIx)

Here, go to the Third Party Tracking section.

![Third Party Tracking](/files/-MBYmGCgA7tQhEg-BNO5)

Now, copy the tracking code.

![Copy the tracking code](/files/-MBYmXtbnC3bSDS-TCg-)

Change the code (by replacing: **<https://api.goaffpro.com/loader.js>** with **<https://api.goaffpro.com/checkout\\_widget.js>**)

**From tracking script:**

```
<script type="text/javascript" src="https://api.goaffpro.com/loader.js?shop=example "></script>
```

**To popup script:**

```
<script type="text/javascript" src="https://api.goaffpro.com/checkout_widget.js?shop=example"></script>
```

After this, add the popup script in the Advanced Settings > Web Analytics > Affiliate Conversion Tracking > Conversion Tracking Code box in the BigCommerce panel. Finally, click on **Save**.

{% hint style="info" %}
Also, make sure that the third party tracking script is added in the Conversion Tracking Code box.
{% endhint %}

![](/files/-MExmM9DS3AVWBfbkD6J)