Complete guide to RFM analysis for e-commerce. Learn RFM scoring methodology, segment definitions, scoring matrices, and how to use RFM for targeted marketing.

Basic retries recover 15-25% of failed payments. AI-powered smart dunning recovers 55-80% - a 2-3x gap worth $20-40K/month at $500K MRR. The 5 techniques most teams skip.

Personalization adds 15-25%. Subscriptions add 2-3x. We ranked 12 CLV strategies by exact lift, implementation effort, and time-to-impact - with examples from $5-50M Shopify brands.

Involuntary churn is 20-40% of all subscription churn - and it is invisible. A $2M brand loses $180K-$360K/year to failed payments, not cancellations. The diagnostic + fix playbook.

10 retention tools ranked by what actually reduces churn. Covers analytics, loyalty, support, and subscription platforms - with real pricing and which combos work best together.