Google Enhanced Conversions is a Google Ads feature that supplements standard conversion tracking by sending hashed customer data (email, phone) server-side to Google — recovering purchase attribution lost when iOS strips the gclid click ID or Safari ITP clears the attribution cookie. Google matches this hashed data to signed-in Google accounts, restoring conversion credit even when the browser-based gTag fails. Most Shopify stores recover 15–35% more Google Ads conversions. Free to implement via Make.com in 6 minutes.
iOS 17+ strips the gclid parameter from ad URLs when customers open them via Mail, Messages, or Safari Private Browsing. Without gclid, Google cannot attribute the purchase to the ad click — the conversion disappears. Enhanced Conversions recovers it by matching the customer’s hashed email to their Google account.
affects all Shopify stores with iOS trafficSafari’s Intelligent Tracking Prevention limits attribution cookies to 24 hours — sometimes 1 hour. If a customer clicks a Google Ad, leaves, and returns days later to purchase, the gclid cookie is gone. Enhanced Conversions matches the purchase to the Google account regardless of cookie expiry.
particularly affects considered-purchase storesBrowser extensions block the Google Ads gTag from loading on the checkout confirmation page entirely. The purchase completes in Shopify — Google records zero conversions for that customer. Enhanced Conversions fires server-side, completely bypassing browser-based ad blockers.
42% of desktop users have ad blockers (2026)Customer completes checkout on Shopify. Shopify records the order including the customer’s email address and phone number.
Shopify sends an Order payment webhook to Make.com server-to-server — invisible to the customer’s browser, iOS, and ad blockers.
Make.com SHA-256 hashes the customer email and phone, then POSTs them to the Google Ads Conversions API with the purchase value and timestamp.
Google looks up whether a signed-in Google account matches the hashed data. If yes, conversion credit is assigned to the ad click that brought that user.
The standard gTag does the same job from the browser. Enhanced Conversions is a supplement, not a replacement — you run both simultaneously. Google automatically deduplicates using the order ID, so the same purchase is never counted twice. Enhanced Conversions adds attribution recovery for the 15–35% of purchases where the gTag fails.
No Google Tag Manager. No paid apps. Make.com free tier + one Shopify webhook.
Sign up at make.com free — 1,000 operations/month, no credit card required. This is the automation platform that will route your Shopify order data to Google’s API.
make.com · free tier · no credit cardIn Shopify Admin → Settings → Notifications → Webhooks, create an Order payment webhook pointing to your Make.com scenario URL. This fires every time a Shopify order is paid.
Shopify Admin → Settings → WebhooksIn Make.com, add an HTTP module that POSTs to the Google Ads Conversions API endpoint with your Conversion Action ID, hashed email (SHA-256), and order value. Connect via OAuth 2.0 to your Google Ads account.
Google Ads Conversions API v17