Issue with setting up purchase conversion action for google ads

Topic summary

Main issue: Purchase conversion testing for Google Ads fails—an error occurs and the session disconnects upon entering checkout. A screenshot is referenced and appears central to diagnosing the problem.

Current setup:

  • Admin checkout settings include the global site tag and a Purchase event snippet.
  • The theme.css also contains the global site tag.
  • The site is www.slike.lu.
  • The poster asks if adding a Universal Analytics (UA) code in Preferences → Google Analytics is unnecessary given the current tags.

Context/terms:

  • Global site tag (gtag.js) is Google’s tagging framework for Ads/Analytics.
  • UA code refers to a Google Analytics Universal Analytics property (e.g., UA-XXXX).

Latest update and status: Another participant asks whether a solution was found, but no fixes, decisions, or confirmed actions are provided. The thread remains unresolved with open questions about proper tag placement and the need for UA configuration.

Summarized with AI on February 17. AI used: gpt-5.

When I am trying to test conversion action (purchase) I have error and it’s getting disconnected when I am going into check out - see the screen. Could you please advice?

I the admin panel in checkout settings-I added:

  • global site tag

  • and Event snippet for Purchase

I the theme.css - I added:

  • global site tag

my site www.slike.lu

Therefore I understand that I don’t need to add UA code in Preferences → Google Analytics section?

Hi, did you find any solution ?

Thank you