How do I A/B test different creators against each other for the same product?

A/B testing two creators for the same product — setup guide: Isolate the variable: same product, same brief, different creators and audiences. What you're testing: creator audience fit, content style, niche authority. Tracking setup: unique UTM link for each creator, unique discount code for each creator. Same posting window (within 3 days of each other). Same content format (both Reels or both Stories — not mixed). What to measure: UTM clicks, discount code usage, new customers from each source, cost per acquisition. Confounds to watch for: one creator has more followers (control for reach, not raw numbers), one posted during a sale (controls timing). Minimum sample: need at least 200 tracked interactions per creator to draw conclusions. This means higher-follower creators need less time to get data. Run 2–3 A/B tests before concluding — one data point is noise.