[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary-grandfathering::en":3,"gloss-cluster-grandfathering::en":23,"gloss-next-grandfathering::en":9},{"slug":4,"category":5,"name":6,"definition":7,"meta_desc":8,"faq":9,"schema_markup":9,"related":10},"grandfathering","saas","Grandfathering","Grandfathering is the practice of letting existing customers keep their old plan and pricing when you change what new customers get. If you raise prices, retire a plan, or re-tier features, grandfathered accounts continue on the terms they signed up under - sometimes indefinitely, sometimes for a defined transition period. It's primarily a trust and retention tool: honoring the deal people bought protects goodwill, reduces the churn spike that a forced price hike triggers, and rewards early adopters who took a chance on you. The cost is complexity and drag. Every legacy price is another tier your billing system, support team, and codebase must maintain, and a large grandfathered base can quietly cap your revenue as your costs (especially variable AI\u002Finfrastructure costs) rise underneath fixed old prices. The pragmatic middle path is to grandfather generously but not forever: give clear, well-communicated notice, offer incentives to move to current plans, and set sunset dates so legacy pricing doesn't become permanent technical and financial debt.","Grandfathering lets existing customers keep their old plan and price when you change terms for new ones — goodwill now, a pricing-migration debt later.",null,[11,14,17,20],{"slug":12,"name":13},"churn","Churn",{"slug":15,"name":16},"mrr","Monthly Recurring Revenue (MRR)",{"slug":18,"name":19},"seat-based-pricing","Seat-Based Pricing",{"slug":21,"name":22},"usage-based-pricing","Usage-Based Pricing",[24,28,32,35,38,41,44,48,51,54,57,60],{"slug":25,"category":5,"name":26,"updated_at":27},"activation","Activation","2026-08-24T02:46:36+00:00",{"slug":29,"category":5,"name":30,"updated_at":31},"aha-moment","Aha Moment","2026-08-24T02:46:37+00:00",{"slug":33,"category":5,"name":34,"updated_at":31},"annual-contract-value","Annual Contract Value (ACV)",{"slug":36,"category":5,"name":37,"updated_at":27},"api-first","API-First",{"slug":39,"category":5,"name":40,"updated_at":27},"arpa","Average Revenue Per Account (ARPA)",{"slug":42,"category":5,"name":43,"updated_at":27},"arr","Annual Recurring Revenue (ARR)",{"slug":45,"category":5,"name":46,"updated_at":47},"auto-renewal-clause","Auto-Renewal Clause","2026-08-24T02:46:38+00:00",{"slug":49,"category":5,"name":50,"updated_at":47},"build-vs-buy","Build vs. Buy",{"slug":52,"category":5,"name":53,"updated_at":31},"burn-multiple","Burn Multiple",{"slug":55,"category":5,"name":56,"updated_at":47},"burn-rate","Burn Rate",{"slug":58,"category":5,"name":59,"updated_at":27},"cac","Customer Acquisition Cost (CAC)",{"slug":61,"category":5,"name":62,"updated_at":27},"cdn","Content Delivery Network (CDN)"]