---
title: Always send the parent product ID to Google Analytics 4
url: "https://www.seopress.org/support/hooks/always-send-the-parent-product-id-to-google-analytics-4/"
lang: en-US
updated: 2026-05-22
hook_name: seopress_gtag_ec_item_id
required_version: 9.9
---

# Always send the parent product ID to Google Analytics 4

- **Hook name:** `seopress_gtag_ec_item_id`
- **Required version:** 9.9

```php
<?php
/**
 * SEOPress PRO — Always send the parent product ID to Google Analytics 4.
 *
 * By default SEOPress sends the variation SKU (or, as fallback, the variation ID)
 * for each line item in a WooCommerce order. Some shops prefer to aggregate
 * analytics at the parent product level — e.g. a single "Blue T-Shirt" row in GA4
 * instead of one row per size / color variation. This snippet returns the SKU
 * (or ID) of the parent product whenever a variation is purchased.
 *
 * Hook: seopress_gtag_ec_item_id
 * Plugin: SEOPress PRO 9.9+
 * Requires: WooCommerce
 */

add_filter( 'seopress_gtag_ec_item_id', 'sp_gtag_ec_item_id', 10, 4 );
function sp_gtag_ec_item_id( $item_id, $product, $item, $order ) {
	if ( ! is_a( $product, 'WC_Product' ) ) {
		return $item_id;
	}

	// Only override for variations — keep the default for simple products.
	if ( ! $product->is_type( 'variation' ) ) {
		return $item_id;
	}

	$parent_id = $product->get_parent_id();
	if ( ! $parent_id ) {
		return $item_id;
	}

	$parent = wc_get_product( $parent_id );
	if ( ! is_a( $parent, 'WC_Product' ) ) {
		return $item_id;
	}

	return $parent->get_sku() ? $parent->get_sku() : $parent->get_id();
}
```

Source: [https://gist.github.com/wp-seopress/0cfb39c634400e083d098bb1bee95aa6](https://gist.github.com/wp-seopress/0cfb39c634400e083d098bb1bee95aa6)