Hi @cognique_jim,
Whilst it’s not really possible to run both UA- and GA4 code on the same website Google does have a way of connecting a UA- account to a GA4 account.
When signed into a Google Analytics UA- account you can navigate to Admin > GA4 Setup Assistant. On that page, you will see a button to connect or disconnect a UA- property to a GA4 property you’ve created.

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I’d note that this Google Analytics feature should possibly still be considered BETA. As it’s a feature of the Google website itself it’s also not something we could offer assistance or support with.
Personally for now I’d recommend continuing using only UA- tracking. The new GA4 analytics platform from Google itself could still be considered BETA as it does not have the same e-commerce tracking capability UA- has as yet.
I hope this helps.
Thread Starter
Jim
(@cognique_jim)
Hi Stuart,
Thank you for taking the time to reply, much appreciated.
I will take a look at your suggestion.
Many thanks for your help.
Hey @cognique_jim
I’m happy I could offer some potential guidance on this for you. I’m also going to mark this as resolved – if you have any further questions, you can reopen it again if you need be.