Question

After enabling parallel tracking for better load speeds, I noticed a drop in tracked conversions across campaigns. My Google Ads tag hasn’t changed, and Google Analytics appears functional. Could parallel tracking be breaking my setup?

Answer 1

Yes, parallel tracking can break your setup if it's not fully compatible. Here's what to check:

• GCLID Loss
  Parallel tracking skips redirects. If your site or forms don’t retain the gclid, conversions won’t be tracked.

• Conversion Linker Tag Missing (GTM)
  Required to pass gclid to cookies. Make sure it's firing early on the landing page.

• 3rd-Party Redirects or Trackers
  Some don’t support parallel tracking, causing tracking loss.

• Tag Misfires
  GTM tags may not fire correctly if triggers rely on blocked or delayed scripts.

Fixes

• Add a Conversion Linker Tag (if using GTM).

• Ensure your site captures and keeps gclid through to the thank-you page.

• Test in Tag Assistant or GTM Preview.

• Temporarily disable parallel tracking to confirm the issue.

Parallel tracking improves speed but can disrupt tracking if the setup isn’t updated. Double-check GCLID flow and GTM configuration.