Creative is the targeting now
Meta reads each ad's visuals, spoken content, text, and tone, fingerprints it as an entity, and matches it to people. Twenty near-identical variations collapse into one entity and cannibalize each other in the auction. The unit of testing is the concept, so we build a matrix: persona by value proposition by format, UGC, demo, expert talking-head, lifestyle, social proof.
The working set is 8 to 15 active ads per ad set: proven leaders, mid-tier performers, and fresh tests, with new concepts making up 20 to 30% of each refresh cycle. Refreshes trigger on fatigue signals, falling first-time impression ratio, rising frequency, rising CPA, never on a calendar. Failed hypotheses get logged so the same dead concept isn't rebuilt in month three.
Measurement stays honest. Platform-reported ROAS is modeled, so we triangulate: Meta's incremental attribution setting, blended MER and CAC, and geo holdouts on larger accounts. Cost per lead is always reported next to qualified rate and closed revenue.