Full Answer

Google Ads relies on gclid — the click identifier appended to your landing page URL — to connect a purchase back to the ad that drove it. The problem: gclid is increasingly unreliable. iOS 26 strips tracking parameters from URLs before the page even loads, and Safari's Intelligent Tracking Prevention caps first-party cookies at seven days. A growing share of legitimate conversions arrive without gclid and get reported as organic or unattributed.

Enhanced Conversions close this gap by adding a second matching signal. When a customer completes a WooCommerce purchase, the store SHA-256 hashes their email address and sends it alongside the conversion event — ideally through the Measurement Protocol server-side, which bypasses browser-based restrictions entirely. Google matches the hashed email against its own signed-in user data to attribute the sale, no gclid required. In 2026 Google merged its separate Web and Leads Enhanced Conversions into a [single unified toggle](https://attribuly.com/blogs/ios-26-tracking-mitigation-playbook-2026/), simplifying setup for store owners.

For WooCommerce stores, implementation means ensuring your server-side purchase event includes the hashed customer email — a straightforward addition to any event pipeline. Without it, you are almost certainly under-reporting paid conversions. With iOS restrictions tightening every release and gclid becoming [less reliable by the month](https://seresa.io/blog/data-loss/ios-26-is-quietly-deleting-your-gclid-and-fbclid-before-the-page-loads), Enhanced Conversions are not optional — they are the baseline for accurate WooCommerce attribution in 2026.