Fix Google Analytics (GA4) missing 'Revenue' & 'Conversion' data

Hi

We have x3 websites that all have GA4 data recording correctly except that they are all missing or have incorrect 'Revenue' and 'Conversion Rate' data

'Revenue' is being recorded but at a much lower rate than it should be. The actual sales that we make through the website is much higher than is showing in GA4

'Conversion Rate' is missing altogether as a metric so we can't select it or report on it

If you have expert level understanding of GA4 and you can fix this issue easily please let us know your availability and cost to do the job.

Many Thanks

John