Business

14 min read

Building Subscription Systems at Scale

Broadleaf Commerce

Written by Broadleaf Commerce

Published on Nov 04, 2025

subscriptions at scale

For most of eCommerce history, the transaction was the end goal. A customer bought something, the purchase was completed, and the relationship mostly ended until they needed something else.

Subscription models flip this. Instead of one transaction, you get recurring revenue. Instead of sporadic customer interactions, you build ongoing relationships. Instead of unpredictable growth, you can forecast revenue accurately.

But here's what nobody tells you: most companies that try subscriptions fail. Not because the model is broken, but because they underestimate what it actually takes. They see Netflix and Spotify and think, "We can do that." They can't. Netflix spent years building payment infrastructure before it got it right. Spotify lost money on subscriptions for years. The 2-3x CLV advantage only matters if you can actually keep customers. And keeping customers when you're bleeding money on payment failures and churn is a lot harder than it sounds.

There's a catch beyond just the revenue model itself. Subscriptions require a fundamentally different operating model. Payment failures happen every month. Customer access needs to be seamless and instant. Keeping customers matters more than acquiring them. And renewals for thousands of customers can't be handled manually.

This guide walks through subscription strategy from first principles: when subscriptions actually make sense for your business, what makes them operationally different, and how to execute at scale without breaking.

The Subscription Economy Is Here

Companies running subscriptions report 2-3x higher customer lifetime value than traditional ecommerce. Subscriptions enable accurate financial forecasting. They replace episodic sales relationships with ongoing customer engagement.

The shift is visible everywhere. Software companies stopped selling perpetual licenses years ago. Streaming services like Netflix, Spotify, and Disney+ don't offer any other purchasing model. Direct-to-consumer brands now offer subscription boxes for coffee, razors, beauty products, and pet supplies. B2B companies price their cloud platforms, marketplaces, and tools as monthly subscriptions. Publishers have shifted from newsstand sales to subscription-first models.

What matters across all these cases is simple: subscriptions only work if the business can execute the underlying complexity reliably and at scale. When they can, the revenue advantage is massive.

Why Subscriptions Are Different: The Technical & Business Reality

Subscriptions look simple on the surface, but they involve operational complexity that one-time ecommerce avoids.

In traditional Ccommerce, a purchase is completed, and you're mostly done. In subscriptions, every customer has a renewal date that must trigger a payment. That payment might fail because the card expired, the bank declined it, or the account got flagged for fraud. You need retry logic. If it succeeds, you confirm the subscription continues. If it fails repeatedly, you suspend access.

Common scenarios like mid-cycle upgrades, downgrades, paused subscriptions, and refund requests each require careful orchestration without breaking the customer's current access or billing expectations.

Payment is only half the picture. A customer who pays for premium access should have premium features everywhere: their browser, mobile app, third-party integrations, and smart TV apps. If they access your service on six different devices, they should have identical access on all six.

When a subscription ends or a payment fails, that customer's access should disappear instantly across all platforms. This requires a centralized entitlements system that tracks what each customer can access and coordinates with every place the customer might interact with your service.

Subscriptions let you offer multiple pricing models simultaneously. Tiered plans (basic, pro, enterprise). Free trials (7 days, 30 days, or usage-based). Promotional discounts (50% off for the first 3 months). Usage-based pricing (pay per unit consumed). Annual plans are discounted versus monthly. Seasonal pricing variations.

Each model requires different calculations. Free trials need to transition to paid billing automatically. Promotional discounts apply only to new customers. Annual discounts require accurate accounting and refund handling. Usage-based pricing requires tracking consumption against limits. All of this calculation needs to work correctly at renewal time, often for hundreds of thousands of customers simultaneously.

Your revenue depends directly on retention. A 2% monthly churn rate might seem acceptable, but it compounds dramatically over time. In subscriptions, acquisition is just the beginning. Retention becomes the primary lever for growth.

You need to track which customers are at risk of churning, understand why they're leaving, deliver targeted retention offers, manage dunning (retry logic when payments fail), and forecast revenue based on churn assumptions. These aren't nice-to-haves. They're the difference between profit and bankruptcy.

When Subscriptions Make Sense (And When They Don't)

Subscriptions aren't right for every business. They work when customers receive ongoing value, software, streaming, subscription boxes, rather than one-time products. They need enough scale to justify the operational complexity. Subscriptions only make economic sense with thousands of active subscribers. They require customers who stick around. If your natural churn rate is extremely high, subscriptions struggle.

Finally, revenue forecasting needs to matter strategically. If revenue prediction isn't important to your business, the added complexity might not be worth it. Subscriptions typically don't work for one-time consumables with no recurring need, very small customer volumes, or products where customers have no reason to stay after initial purchase.

Five Subscription Pricing Strategies

Getting pricing right directly impacts both revenue and churn.

  1. Tiered Pricing (Basic, Standard, Premium) lets customers self-select based on their needs. This enables upselling when customers hit feature limits, reaches price-sensitive segments with a basic tier, and creates clear value differentiation. The trick is making price tiers actually map to real use cases. If customers can't justify the price difference, tiering won't work.
  2. Free Trials eliminate purchase hesitation by letting customers experience your product directly. Most trial periods range from 7-30 days, with common lengths being 7, 14, 21, or 30 days. Trials that are too short don't allow users to experience value. Trials that are too long lose revenue potential. Free trials do attract some low-intent users who never become paying customers, but the conversion rate typically more than compensates.
  3. Promotional Discounts like 50% off the first 3 months or $10 off annual plans drive initial conversion. But they train customers to expect discounts and complicate revenue forecasting. Best practice is limiting promotions to acquisition campaigns, not ongoing operations.
  4. Usage-Based Pricing charges based on actual consumption rather than fixed monthly fees. It aligns pricing with customer value and works especially well for APIs, cloud infrastructure, and data processing. Customers feel it's "fair," but you need accurate usage tracking and transparent billing.
  5. Annual vs. Monthly Billing creates different trade-offs. Annual billing improves retention through higher switching costs and psychological commitment, plus it improves cash flow, but adds complexity around payment failures and refund handling. Most successful businesses offer both. The most common discount across SaaS is 16.7% (equivalent to two months free), though annual pricing is typically discounted 10-15% versus monthly.

Building Entitlements: Giving Customers What They Paid For

Entitlements are the bridge between payment and access. A customer who paid for a premium subscription should have premium features. Simple in theory. Complex in practice.

Your commerce system must know which customer is accessing your service, what subscription they have, whether it's active or expired, what features their tier includes, and whether any promotional adjustments apply. This information must be available in real time across every platform where they interact, including website, mobile app, third-party integrations, and connected devices.

Scale this to millions of subscribers across multiple platforms like MLB does, and you're managing massive coordination. The solution is a centralized entitlements service that tracks each customer's authorization level. Every platform queries APIs to determine access rights. When a subscription renews or fails, the entitlements service updates instantly, ensuring consistent access everywhere.

Handling High-Volume Renewals

Renewal processing separates successful operations from failures.

MLB's experience illustrates the point. Opening week meant 650,000 subscription renewals in a single day, with a 57% demand spike compared to the prior year. The platform handled it flawlessly. This isn't achievable with sequential processing or single-threaded systems. During the initial 30 minutes of Opening Day, the system handled 40,000 requests per minute, scaling to a peak of 56,000 requests per minute with servers at only 25% capacity.

Processing hundreds of thousands of simultaneous renewals requires distributed job queues that process renewals in parallel, automatic retry logic that handles payment failures as a normal occurrence, and coordinated customer notifications that tell customers when their renewal succeeded or needs attention.

The Messy Reality

Payment failures are common; research shows that 10-20% of annual recurring revenue can be lost to involuntary churn from failed payments that occur without any action from the customer. But here's what matters: it's not just about recovery. It's about the customer experience during recovery.

A customer's card expires on day 89 of their cycle. You retry it three times and it works on the fourth. Meanwhile, they've already received a dunning email about the failed payment. Now they're annoyed even though you recovered the payment. Another customer had a legitimate charge declined by their bank's fraud system. You automatically retry it, but they don't know why it failed. The account sits suspended for three days before they realize something's wrong and contact support. That support interaction costs you $50. The customer value was $120/year. You just lost money on that relationship.

Payment failures aren't edge cases. They're the norm. Depending on your customer base, 10-20% of renewal attempts will fail on the first try. Some percentage of those can be recovered through retries. Some can't. Some will never contact you about it and just churn silently. This is why teams that claim to have "solved" subscriptions usually mean they've gotten good at managing failure, not eliminating it.

You need to track which renewals succeeded, which failed, which are retrying, and what that means for your revenue forecasts. Look for patterns (fraud, processor issues, customer financial problems) before they become bigger issues.

Retention & Churn Reduction

Acquiring a new subscription customer typically costs 5-7x more than retaining an existing customer. This makes retention the highest-leverage activity in subscription commerce.

Churn is the percentage of customers who cancel their subscription in a given period. A 2% monthly churn rate might sound acceptable, but it means you lose your entire customer base every 4 years. To grow, you must acquire faster than you churn.

But here's the thing: churn is often predictable. Customers who use your product frequently rarely cancel. Customers who don't engage quickly churn. This creates an opportunity. Identify at-risk customers and intervene before they cancel. Here are six strategies businesses use to counter churn:

  1. Feature Education prevents early churn. Many customers simply haven't discovered value in your product. Proactive in-app education, guided tours, and email sequences can prevent "didn't use it enough" churn.
  2. Engagement Programs like loyalty rewards, achievement milestones, or exclusive access can increase engagement and reduce churn.
  3. Proactive Support makes a difference. Reach out to customers showing warning signs (haven't logged in recently, using only basic features, etc.) and offer help before they consider canceling.
  4. Flexible Pausing allows customers to pause rather than cancel during hard times. A paused subscription is often renewed later. A canceled subscription is rarely reactivated.
  5. Win-Back Campaigns target churned customers with re-engagement offers. This costs less than acquiring completely new customers.
  6. Dynamic Pricing & Discounts can prevent churn. For at-risk customers, a targeted discount or feature upgrade is often cheaper than acquiring a replacement customer.

Operationalizing Subscriptions: The Platform Requirement

Subscription strategy only works with a commerce platform purpose-built for subscription complexity. An initial set of considerations for any Subscription platform includes:

As your subscription base grows, can your platform process thousands of renewals simultaneously without slowing down or failing? MLB processes 40,000-56,000 requests per minute during peak traffic while its infrastructure runs at only 25% capacity, leaving room for growth. Underpowered systems create renewal failures that look like customer churn, when they're actually infrastructure problems costing you revenue.

Payment failures are inevitable; research shows that 10-15% of ecommerce transactions fail, with 60-70% of those being recoverable "soft declines" like expired cards or temporary bank holds. Without intelligent retry systems, you're treating recoverable failures as cancellations. The business impact: losing customers who actually want to stay subscribed, simply because your platform can't handle common payment scenarios.

Can your platform handle the full subscription lifecycle, pausing subscriptions during vacations, upgrading mid-cycle with prorated charges, managing grace periods after payment failures, and tracking customer tenure for retention analysis? Limited subscription management forces you into rigid policies that frustrate customers or require manual intervention that doesn't scale.

Business needs change. You'll want to test different pricing tiers, run promotional campaigns, offer annual discounts, or experiment with usage-based models. If your platform locks you into rigid pricing structures, you can't adapt to market conditions or competitive pressure. Consider whether your platform can support pricing changes without requiring development work.

When a subscription status changes, whether it's a successful renewal, a payment failure, or a cancellation, every touchpoint needs to reflect that instantly. Mobile apps, websites, customer portals, and support systems all need consistent, real-time information. Inconsistent access creates support nightmares and damages trust when customers can't access what they paid for, or can access services after canceling.

You need clear visibility into subscription health: What's your monthly recurring revenue? Where are renewals failing? Which pricing tiers convert best? What's causing churn? Without comprehensive reporting, you're operating blind, unable to identify problems before they become revenue losses or spot opportunities for growth.

Subscription Commerce in Practice

Theory matters, but execution determines success.

Start with clear, measurable goals. Define what success looks like: monthly recurring revenue targets, acceptable churn rates, customer retention targets, and scaling timelines. These goals inform pricing decisions, feature prioritization, and operational investments.

Retention matters as much as acquisition. A pricing model that converts well but has terrible retention is worse than lower pricing with better retention. Design pricing to support both acquisition and retention.

Treat retention as a product problem, not just customer service. How do you design your core product to deliver ongoing value that makes customers stay? This might mean regular feature releases, continuous improvements, community building, or deeper integrations with customer systems.

Track the right metrics. Monthly Recurring Revenue and Annual Recurring Revenue. Customer Acquisition Cost. Lifetime Value. Churn rate by cohort (when customers are most likely to cancel). First-attempt renewal success rate. Feature adoption patterns that predict retention. These aren't vanity metrics. They tell you whether your business is working or dying.

Plan infrastructure with scale in mind from day one. Use microservices architecture, design for distributed processing, implement comprehensive monitoring, and build flexibility into pricing and entitlements. You'll need it.

Conclusion: The Subscription Opportunity

Subscriptions aren't magic. They won't save a bad product. They won't fix a broken business model. But if you have something people actually want to keep using, subscriptions transform unpredictable, episodic revenue into something you can actually forecast and build on. They deepen customer relationships in ways one-time transactions never could.

The hard part isn't the idea. It's the execution.

You need a commerce infrastructure that can handle payment failures at scale without your team manually intervening. You need entitlements that work reliably across every device and platform your customers touch. You need pricing that's flexible enough to experiment with but rigid enough not to break your accounting. You need a relentless focus on retention because churn compounds in ways that acquisition never can.

The businesses that win at this, Netflix, Spotify, Slack, and direct-to-consumer brands, all share something: they treat subscriptions as a technical and operational problem first, and a revenue model second. They didn't start with a pricing strategy. They started with "how do we keep customers happy for 5 years?" and built everything else around that.

If you're considering subscriptions, be honest about whether you're willing to invest in the infrastructure to do it right. If you are, the playbook exists. The market opportunity is real. The only question is whether you'll actually execute or just talk about it.

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