Design a Birthday Reward Test That Teaches
Set up a PDCA loyalty test with a prediction, small-scale run, check, and act decision.
A birthday reward gets high attention, but the team does not know whether it creates profitable incremental behavior. Plan, Do, Check, Act for loyalty experiments The common trap is treating open rate and redemption volume as proof of value. Those metrics show attention and use, not incrementality or margin health. Plan Prediction: a $10 birthday reward for members with two purchases in six months will lift purchase within 30 days by 5 points while keeping gross margin above 42%. A useful plan has a target cohort, behavior, time window, success metric, and guardrail. Do Run the reward to 20,000 eligible…
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