Not seeing revenue in GA4 reports? Everything looks good with your ecomm tagging and you are using the local currency default (e.g. US Dollars in the US), but still not seeing revenue in the reports…
Chances are you are not passing the currency code (e.g. USD) as a parameter value with a parameter named currency.
I spent many hours banging my head against the wall a year ago to troubleshoot/figure this out. Spoiler alert – despite all the changes and improvements there have been in GA4, this is still a thing. You are welcome:)