'Our conversion rate is strong, so the store is performing well.' A founder said this while their repeat purchase rate was sitting at 14% meaning 86% of the customers they were working hard to acquire were buying once and never coming back. The conversion rate metric was accurate. The conclusion drawn from it was completely wrong.

Shopify store performance tracking is full of these traps: metrics that look meaningful but mislead, benchmarks that apply to someone else's business, and interpretations that feel logical but lead to the wrong decisions. These myths are expensive they cause founders to optimize for the wrong things, ignore real problems, and build a false sense of confidence in stores that are quietly underperforming.