Incorrect Total Sessions tracked on shopify compared to google and Propel Replays

Hi,

So today so far, shopify has tracked a total of 20 sessions, but my google ads says i have had 47 vistors from my ads, and Propel Replays, says ive had a total of 60 vistors all today. Why is shopify showing such a low amount of sessions compared to the actual sessions tracked on my site?

Anyone? It’s really pissing me off, how Shopify is failing to track seasions