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I'm trying to work out why we're missing some data in GA4.
In the GA4 tag, we're mapping data layer properties to custom events in the format event.event_name. These events have been set-up correctly in GA4 itself, so it's not an issue with that part of the process.
However, when I look in GA4 most of these event properties have the '(not set)' value the majority of the time for page view events which is impossible in some circumstances. For example, we're passing over the Tealium profile where GA4 was fired and this will always be available.
In the documentation for Tealium it states 'Page view events are automatically sent by the GA4 tag, which means no additional data can be sent with these events'.
I'm slightly confused by this statement, as it implies that the mappings section of the GA4 tag won't work unless I switch 'Send Page View' to false.
I can't believe that this is the case, as I'm sure Tealium would or should alert me to the fact that what I'm mapping won't actually work. Like I say, I'm slightly confused by this statement and unsure if it relates to event.event_name properties or some other additional data it's possible to send with a page view.
Even more confusing is that in both the network requests and Omnibug the event data is there, it just never gets into GA4. I've tried Google support but they feel it's a configuration issue rather than a platform issue.
Any help would be greatly appreciated.
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