When PixelRelay handles GA4 or Google Ads, stop Google & YouTube from sending the same events, or they'll be counted twice. Your Merchant Center product feed can stay connected.

Do this right before you enable that platform in PixelRelay's Guided setup, in one sitting. GTM tags, custom pixels, theme code and other apps are covered on the full switch-over pages: Turn off old GA4 tracking and Turn off old Google Ads tracking.

GA4

In Shopify, open Sales channels → Google & YouTube → Settings.
Open Connected Google services and find Google Analytics.
Click Disconnect for the GA4 property you connected to PixelRelay, then confirm.

PixelRelay loads its own GA4 tag for page views and sends shopping events from its servers, so you don't need another GA4 tag. Not connected yet? See Connect GA4.

Google Ads

In Google & YouTube → Settings, under Data sharing and tag management, expand Additional conversion measurement settings. Next to Conversion event settings, click Manage (click Manage again if a Measure conversions window opens).

Click the pencil next to Purchase and each other event PixelRelay will handle.
Select Don't measure in linked account. If Add custom conversion ID/label is ticked for that event, untick it.
Save each event, then save the settings.

You don't need to disconnect Google Ads from the channel, and your product feed keeps syncing.

If PixelRelay handles both Google Ads and GA4 and you want the channel's Google tags off completely, you can instead click the arrow next to Conversion measurement, pick Turn off conversion measurement and Save. Google may ask you to disconnect Google Analytics and YouTube Store first.

Then, in Google Ads, set the channel's old purchase action (like Google Shopping App Purchase) to Secondary so only PixelRelay's counts toward bidding: see What to do next in Google Ads. Not connected yet? See Connect Google Ads.

Switch back

GA4: reconnect the property under Connected Google services.
Google Ads: click the pencil on each event, choose Select from linked account, pick the action and Save. (Turned conversion measurement off? Open it again and pick Turn on conversion measurement.)

Then set that platform to My existing setup (PixelRelay sends nothing) in PixelRelay's Settings → Relay → Who tracks each network?, or disconnect it in Connections.

Sources

Checked 29 September 2026:

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