What product identifier is sent in tracking events?
By default, the PrestaShop product ID is used as the item_id in all tracking events. You can change this in Settings → Product Identifier to use the product Reference, EAN-13 barcode, or UPC instead. This is important for Google Merchant Center / Shopping campaigns where your product feed uses a specific identifier format — the tracking events should match your feed for proper attribution.
Learn more: Marketing Revolution — unified tracking with flexible product identifiers
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