--- title: "RFM Segments: Lost" slug: "rfm-segments-lost" description: "Learn how to use RFM segments lost in InOne to identify disengaged customers and reengage them with tailored campaigns to improve retention." tags: ["rfm", "rfm segments"] status: "update" updated: 2026-09-14T17:55:05Z published: 2026-09-14T17:55:05Z canonical: "academy.insiderone.com/rfm-segments-lost" --- > ## Documentation Index > Fetch the complete documentation index at: https://academy.insiderone.com/llms.txt > Use this file to discover all available pages before exploring further. # RFM Segments: Lost Lost customers are users who have: - Not purchased for a long time. - Shop infrequently. - Spend very little. - **Lowest** Recency score, **Low** Frequency score, and **Lowest** Monetary [score](https://academy.insiderone.com/docs/rfm-segments#scoring-model). ![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/rfmlost*.png) The Lost segment contains low-value, long-inactive customers—best targeted with incentive-driven reactivation campaigns. ## Use Cases #### Reactivation Incentives Offer special discount coupons to encourage them to return. #### Reactivation Journeys via Architect Use [Architect](/v1/docs/introduction-to-architect) to design multi-channel reactivation flows across reachable channels (e.g., Email, Web Push, SMS).