Campaign experiment: <ID>

Brand / account / platform:
Audience segment and job:
Source evidence and permission:
Baseline (time window, source, coverage):
Hypothesis (not an algorithm claim):
Creative A and B with differences:
Primary and guardrail metric:
Publish and snapshot dates (24h / 7d / 28d):
External factors / confounders:
Observed results (never invent):
Lessons / next action: