We’ve now pushed millions through our custom Stripe checkout system.
And while Stripe handled the payments flawlessly, what actually made our order forms fast, flexible, and scalable wasn’t Stripe alone—it was pairing Stripe with Sanity CMS as our product and pricing backend.
This stack let us iterate faster, ship smarter, and optimize conversions without getting bogged down in dev cycles. Here’s what we learned—and why this combo changed everything.
The Problem: Scaling Custom Checkouts Without Slowing Down
Custom checkout flows sound great—until they’re bottlenecked by engineering.
Every time someone from marketing wanted to tweak product copy, test pricing, or change a bundle layout, it turned into another Jira ticket. Deploying minor changes meant developer time, QA cycles, and potential downtime. Not exactly agile.
We needed a way for content and marketing teams to move quickly without constantly involving devs—and without compromising the stability of the payment stack.
That’s where Sanity CMS came in.
The Breakthrough: Stripe Handles Logic, Sanity Handles Content
We decoupled the two roles:
- Stripe powers the secure payment logic
- Sanity powers the dynamic content behind products, pricing, bundles, and checkout copy
This gave us the best of both worlds: a rock-solid checkout experience, with a flexible content backend that non-devs could control.
7 Things That Got Instantly Better
1. Content Editors Became Conversion Optimizers
Marketing didn’t need to “wait for devs” anymore. They could A/B test CTAs, tweak product descriptions, and adjust price anchoring strategies directly in Sanity.
“Buy Now” vs. “Get Started”? Test it live. No code, no deploys.
2. Dynamic Pricing Without Code Deployments
Sanity’s schema let us build pricing rules, promos, and region-specific pricing.
We launched Black Friday campaigns in minutes. A tiered pricing test? Done before lunch.
3. Product Variants Became Effortless
Sanity references made it dead simple to link products to tiers, bundles, and upsells—without duplication.
Adding a payment plan became a content update. Not a dev ticket.
4. Structured Data Improved Conversion Tracking
Checkout tracking used to break when a product had missing metadata.
Sanity’s schema validation kept everything clean across analytics, checkout, and fulfillment.
5. Multi-Language Checkouts at Scale
Sanity’s i18n support let us launch in five countries—each with region-specific pricing, copy, and payment methods.
One codebase. Five markets.
6. Real-Time Order Form Updates
Need to update offer terms during a launch? Sanity’s real-time sync pushed changes live across all forms.
No build pipeline. No redeploy.
7. Built-In Audit Trails
We could trace every product edit, price change, and copy tweak—across every campaign.
Perfect for post-mortems, debugging, and attribution.
The Real Win: Speed Without Sacrificing Control
This setup gave devs the ability to focus on building a secure, scalable Stripe integration—while giving content teams the freedom to run revenue experiments without friction.
It’s the best kind of separation of concerns.
Bonus: Personalized Checkouts with GROQ
Want to take it even further?
Use GROQ queries to dynamically personalize checkouts based on:
- UTM parameters
- Cart contents
- Returning visitor behavior
We’ve seen personalized forms convert up to 40% better.
Final Takeaway: Stripe Alone Is Powerful. Stripe + Sanity Is Unstoppable.
If you’re building headless ecommerce flows, this combo unlocks:
- Secure payments
- Flexible product & pricing backend
- Fast iteration
- Personalized experiences
What’s your experience building with a headless CMS?
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