Google Analytics is rolling out an entirely new set of analytic tools called GA4. Gone are the days of UA numbers, and you can no longer create new UA properties. Legacy UA accounts still exist – you don’t have to make the switch yet.
Resources
Learn More about GA4
Update to LaLa Theme 4
There is a new setting in the OPTIONS menu for the new GA4 number. Just paste the number in, save your work, and go.