Influencer Marketing KPIs: What Actually Matters in 2026
The core influencer marketing KPIs in 2026 are Return on Ad Spend (ROAS), Return on Investment (ROI), and Customer Acquisition Cost (CAC) to measure direct revenue. For vetting creators, prioritize engagement-to-like ratios and comment specificity. E-commerce founders must separate trackable sales data from top-of-funnel visibility metrics like reach.