Plan and document an A/B testing program to optimize review generation across [ChannelsToTest] over [TestDurationWeeks] weeks. Define hypotheses, sample allocation, and guardrails. Specify minimum [SampleSize] per cell, success metrics (primary: [PrimaryMetric]; secondary: [SecondaryMetric]), and stopping rules. Provide test cells for subject lines, send times, value propositions, and CTA placements. Include a post-test learning agenda and a rollout plan for the winning variant.
Output format:
Experiment design table (Cell, Variant, Sample, Hypothesis, Metric).
Tracking spec (UTMs, events, data dictionary).
Decision rules (written) for early stop/scale.
Reporting template (weekly) with visualization requirements.