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7 key criteria for evaluating headless commerce platforms

Looking to re-platform? Use these 7 criteria to evaluate headless commerce platforms, from customer journeys to total true cost of ownership.

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Traditional suite-led platforms vs. headless platforms

Platform Best fit Key trade-off Questions to ask
Traditional suit-led Businesses that need a working commerce software off the shelf Flexibility for simplicity: customisation is limited to what the system supports What are we giving up by staying within the current system?

Has their ceiling started limiting the business?
Headless / composable Businesses with internal team capacities that have different needs across different channels, and aren’t getting what they need from suite-led limitations Simplicity for flexibility: customisation becomes nearly unlimited, but complexity increases with integration, governance, and maintenance responsibilities Do we have the right people to own new responsibilities before we hit go?

What happens if ownership of these responsibilities lapses?
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True cost of ownership: comparison table

Cost category What to include Common blind spot Evaluation question
Platform licence and transactions Subscription fee, processing fee, tiered pricing thresholds Transaction fees that scale with growth (cheap at low volume, expensive at scale) What does this cost for forecasted order volumes (not just today’s volume)?
Implementation and migration Initial build, data migration, testing, parallel-run costs Migration complexity from undocumented legacy dependencies Who put the estimate together? The vendor, or the team doing the work?
Front-end development and design Custom checkout, UI/UX build, ongoing design iteration, multi-channel front-ends All front-end experiences are custom; there’s no fallback template Do we have design/dev capacity beyond the initial launch?
Integration, middleware, and API management Connecting services, API maintenance, middleware, licensing, hosting Cost of keeping vendor APIs synced as each updates independently Who owns ongoing integration maintenance?
Security, monitoring, and compliance Pen testing, uptime monitoring, compliance audits, security tooling No single vendor covers it all by default; instead it’s distributed across vendors Does the cost model cover all services in the stack, or just the core platform?
Ongoing support Dev support, vendor upgrades, addressing technical debt Technical debt from launch is expensive to dissect later What three-year model is realistic: internal, agency, or hybrid?
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FAQ

Yes, headless ecommerce is worth it for enterprise B2Bs that have stretched their legacy system to its limits and need a more flexible and scalable alternative. However, it's not always the right choice for every business, and its suitability depends on the current and future business needs.

Headless commerce is a platform that separates an online store’s front end from its back end, so one can change without impacting the other. Its decoupled architecture gives businesses more flexibility to build custom, channel-specific experiences without the limitations of a single vendor’s templates.

The difference between headless and composable commerce is the flexibility of their back end systems. Where headless splits the front end from the back-end (creating two separate systems), composable commerce goes a step further: splitting the back-end system into a modular, microservices architecture.