TLDR Tech / Marketing
Your email A/B test winner might be lying
Email A/B tests are often interpreted too narrowly, with marketers rolling out "winners" based on a single metric without examining what happened further down the funnel. One example showed a "winning" subject line with higher click-through rates actually produced lower conversion rates, lower average order values, and less revenue per recipient than the losing version. Test results are shaped by timing, audience composition, inbox conditions, and competing messages, making them unreliable as a permanent strategic direction. The recommended shift is to use testing as a learning system focused on behavioral patterns rather than isolated wins.
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