Net Promoter Score (NPS)
A customer loyalty metric based on asking customers how likely they are to recommend your product on a 0-10 scale. High NPS correlates with strong referral potential — promoters (9-10) are natural candidates for your affiliate or referral program.
Net Promoter Score Fundamentals
Net Promoter Score (NPS) measures customer loyalty and willingness to recommend product. Single survey question: 'How likely are you to recommend this product (0-10 scale)?' Responses categorize as: Detractors (0-6), Passives (7-8), Promoters (9-10). NPS = (% Promoters − % Detractors). Score ranges -100 to +100. NPS is critical for SaaS—customers willing to refer friends become natural affiliates. High-NPS companies achieve 2-3x more organic referrals than low-NPS companies.
NPS Calculation and Benchmarks
Example: survey 100 customers: 60 promoters, 20 passives, 20 detractors. NPS = (60% − 20%) = 40. Benchmark scores: SaaS average 30-50, strong SaaS 50+, exceptional SaaS 70+. Negative NPS (<0) indicates more detractors than promoters—concerning indicator for growth. NPS above 50 indicates strong referral potential. NPS varies by segment—enterprise customers often have higher NPS than SMB due to better support and deeper integration. Calculate NPS quarterly and track trends over time. Increasing NPS indicates improving product satisfaction and referral potential. Declining NPS signals customer satisfaction issues requiring attention.
NPS and Affiliate Program Health
NPS directly predicts affiliate program success—customers rating 9-10 become natural referrers. Identify Promoters in your customer base and invite them to affiliate program. These customers already recommend you; affiliate program formalizes and incentivizes this behavior. High-NPS customer cohorts generate 3-4x more referrals than low-NPS cohorts even with identical commission rates. Measure NPS by customer acquisition source—compare affiliate-sourced customer NPS versus paid acquisition. Often affiliate-sourced customers have higher NPS due to better fit and pre-sales credibility. Use NPS data identifying detractors—follow up understanding dissatisfaction. Reducing detractors strengthens affiliate program by improving overall customer quality. Make improving NPS organizational priority—it drives both retention and affiliate recruitment simultaneously. Target 50+ NPS for healthy SaaS company with strong affiliate potential. Most SaaS companies with 50+ NPS achieve 15-25% of new customers from affiliate referrals.
