> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# Why Does Meta Pixel Helper Show Warnings on My Store?

## If you see yellow warnings in the Meta Pixel Helper extension, don't worry — your pixel is most likely working correctly.

## What's happening?

* The Meta Pixel Helper browser extension sometimes flags warnings when it detects that pixel events are being fired in a non-standard way. Nabu uses a **sandbox-based tracking method** to fire events — this approach is completely safe, fully compliant with Meta's guidelines, and actually helps avoid duplicate event tracking.
* Because this method differs from the traditional inline script approach, the Pixel Helper may not recognize it correctly and shows a warning. This is a known behavior and does not affect your tracking accuracy.

## How do I know if my pixel is actually working?

The easiest way to confirm your setup is correct is to check whether **events are appearing in Facebook Events Manager**:

1. Go to [Facebook Events Manager](https://business.facebook.com/events_manager).
2. Select your pixel from the **Data Sources** tab.
3. Navigate to the **Test Events** tab or the **Overview** section.
4. If you can see events like **PageView**, **ViewContent**, **AddToCart**, or **Purchase** showing up — your pixel is working perfectly.

If events are being received by Facebook, the warning in Meta Pixel Helper can safely be ignored.

## Still concerned?

If no events are showing up in Events Manager (not just warnings in Pixel Helper), that may indicate a setup issue. In that case, please check:

* That the **App Embed Block** is enabled in your Shopify theme.
* That the relevant events are enabled on your pixel's settings page in Nabu.

Feel free to reach out to our support team if you need further assistance.