# Meta Pixel Purchase Event for WooCommerce

> Fires the Meta (Facebook) Pixel "Purchase" event with the order value, currency and product IDs on the order received page, once per order.

- Type: PHP
- Runs: Run everywhere
- Category: [Analytics & Tracking](https://wpide.com/library/category/analytics/)
- Requires: WooCommerce
- Tags: meta-pixel, facebook, woocommerce, conversion
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/analytics-meta-pixel-woo-purchase/

## Code

```php
add_action( 'woocommerce_thankyou', function ( $order_id ) {
    $order = wc_get_order( $order_id );

    if ( ! $order || $order->get_meta( '_wpide_meta_purchase_sent' ) ) {
        return;
    }

    $ids = array();

    foreach ( $order->get_items() as $item ) {
        $ids[] = (string) ( $item->get_variation_id() ? $item->get_variation_id() : $item->get_product_id() );
    }

    $data = array(
        'value'        => round( (float) $order->get_total(), 2 ),
        'currency'     => $order->get_currency(),
        'content_ids'  => $ids,
        'content_type' => 'product',
        'num_items'    => (int) $order->get_item_count(),
    );

    printf(
        "<script>if (typeof fbq === 'function') { fbq('track', 'Purchase', %s, { eventID: %s }); }</script>\n",
        wp_json_encode( $data ),
        wp_json_encode( 'order-' . $order->get_order_key() )
    );

    $order->update_meta_data( '_wpide_meta_purchase_sent', time() );
    $order->save();
}, 20 );
```

## Notes

Needs the Meta Pixel base code on the page. The order key is sent as event ID so you can deduplicate with the Conversions API.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Meta Pixel Purchase Event for WooCommerce" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/