hello, in opc tracking section:
OPC Backend (OnePage Checkout) -> OPC Tracking (left main menu) -> enable Google Anlytics -> configure order statuses (you can use all of them) -> set up your GA code + Adwords code -> Optionally configure to run at Product pages + categories + cart (for remarketing or measuing product impressions) -> Set GA URL for cart (by default /cart) -> Set GA URL for thank you page (by default /thank-you ) -> same URL is used even when the customer returns from a redirected payment method such as iDeal, Paypal, or else
- click enable OPC tracking (first tab in OPC Tracking section) -> this will install+update+enable "opctracking" vmpayment + "opctrackingsystem" joomla plugins.
in GA you can also choose if to use the latest API such as "GTAG.js"
https://developers.google.com/analytics ... on/gtagjs/compatible with Apple product's tracking
OR analytics.js
OR legacy ga.js
you can even use GTM in OPC but it's very complicated to set up in GTM itself. it then supports custom URL rewrites as needed per detected events/triggerers.
best regards,stan