Why is Google Analytics 4 recording incorrect sales data?

[Vranklin]

Even when you connect GA4 through the Google Sales channel, it records wrong data.

For example one day I have 7 sales and GA4 will say 6 sales.

I might as well look into the Shopify Analytics and I can be sure that the stats are correct.

Why does GA4 exist? It's trash.

[FlorinBa]

It seems like a poor implementation. It under reports by as mush as 50% for us. 😕

Shopify support will not help, they sent us to google.