Hello, Greetings! of the day. I have checked your opencart ecommerce website, using "journal3" theme, at link, provided in project description. I have checked events and data, sent to Google Analytics 4 (GA4), on your website, when homepage to checkout page process is done.
Can you please provide more details, about missing conversion data, which needs to be updated? I have extensive experience in GA4 setup in ecommerce projects. Your work, regarding GA4 configuration on your opencart website, will be done, according to requirements. You may provide further details, required to start project.
Thanks.