Originally published September 2020. Updated November 2026 to add the parts of a composable stack, the signs it’s time to move beyond headless, and a step-by-step guide to getting started.
Composable commerce is a way of building your ecommerce stack from separate, best-of-breed components, such as search, checkout and content, connected through APIs. Each part can be added, scaled or replaced without touching the rest. Amplience provides the content layer in that stack, with a headless CMS, DAM and agentic workflows built for retail.
Key takeaways
Composable commerce is a modular approach to building your commerce tech stack, combining independent best-of-breed components rather than relying on a single all-in-one platform.
The building blocks of composable commerce are Packaged Business Capabilities (PBCs): self-contained, interchangeable components such as search, checkout, content, and payments.
Composable commerce takes headless further by decoupling not just the frontend from the backend, but the entire technology stack.
99% of retailers have either adopted or are planning to adopt a composable approach. The question is no longer whether to go composable, but how.
Amplience is a core component of composable commerce architectures, providing the headless CMS and DAM layer that powers content across every channel.
Most retailers go composable one component at a time, starting with the part of their stack that slows them down most.
What is composable commerce?
Composable commerce is a modern approach to building your ecommerce technology stack. Rather than buying an all-in-one platform and hoping it does everything you need (spoiler: it never quite does), composable commerce lets you choose the best available solution for each specific function and connect them together via APIs.
Think of it like building your perfect kitchen. You would not buy one appliance that claims to be a fridge, oven, dishwasher and coffee machine in one. You would choose the best fridge, the best oven, the best coffee machine, and make sure they all work together in the same space. Composable commerce works on exactly the same principle.
Gartner coined the term in 2020 and predicted that companies deploying a composable approach would outperform their competitors by 80% in the speed of implementing new features. Six years later, that prediction looks pretty good: 99% of retailers have either adopted or are planning to adopt a composable approach to commerce.
How composable commerce works: packaged business capabilities explained
The building blocks of a composable commerce architecture are called Packaged Business Capabilities, or PBCs. A PBC is a self-contained software component that handles a specific business function, such as search, checkout, product information, personalization, order management, or content delivery.
PBCs sit somewhere between a granular microservice and a rigid monolithic suite. They are larger and more complete than a single microservice (which might handle just one very specific task), but far more modular and replaceable than a traditional all-in-one platform. Think of them as the Goldilocks of commerce components: not too big, not too small, just right for the job.
Each PBC communicates with the others via APIs, meaning you can add, swap or upgrade individual capabilities without touching the rest of your stack. Your search provider is not performing well? Swap it out. A better personalization tool comes to market? Plug it in. No big migration project, no system-wide risk, no 18-month replatforming program. Amplience works the same way, so you can add it to an existing stack without replacing anything else.
Composable commerce vs headless commerce: what’s the difference?
Composable versus headless is one of the most common questions we hear, and it’s a fair one because people often use the two terms interchangeably. They are related but not the same thing.
Headless commerce decouples the frontend presentation layer from the backend commerce functionality. The frontend and backend operate independently via APIs, so you can update your storefront without touching the underlying commerce logic, and vice versa. It is a big step forward from traditional monolithic architecture.
Composable commerce takes this further. Rather than just separating the frontend from the backend, composable commerce breaks the entire technology stack into independent, interchangeable components. Every component is pluggable, scalable and replaceable.
In short, every composable commerce implementation is headless, but not every headless implementation is fully composable. Headless is the first step. Composable is the destination. Amplience works in both: as the headless CMS in a headless build, and as one of many components in a composable one.
Composable commerce vs monolithic platforms: why it matters
If you have spent time wrestling with a legacy commerce platform, you already understand the problem composable commerce is designed to solve. Monolithic platforms bundle everything into a single, tightly coupled system. Changing one part risks breaking another. Scaling for a flash sale means scaling the whole thing. Replacing an underperforming feature means replacing the entire platform.
The result is a technology stack that works against the speed your business needs to move. Your development team becomes a bottleneck. Your ability to personalize, experiment and launch new experiences is constrained by what your platform allows rather than what your customers want.
Composable commerce solves this structurally. Each component is independent. When demand spikes, you scale only what needs to scale. When a better tool emerges, you swap it in. When a new channel appears, you add it without rebuilding everything else. Many retailers adopt Amplience this way, starting with content and leaving the rest of the stack in place until they’re ready.
The benefits of composable commerce
The adoption numbers tell the story pretty clearly, but here is what those numbers actually mean in practice for your business.
Speed and agility
Because components can be updated independently, your teams can ship new features, campaigns and experiences without waiting for a full platform release cycle. Retailers using composable architectures consistently report significantly faster implementation times compared to equivalent work on monolithic platforms. With Amplience, marketers and merchandisers update content themselves, without waiting for a developer.
No vendor lock-in
With composable commerce, every component in your stack becomes a commodity you can replace. You are not dependent on a single vendor’s roadmap, pricing decisions or feature priorities. If something better comes along, you can switch. Amplience is MACH-certified and API-first, so it stays replaceable too. That’s how it should be.
Best-of-breed technology
Rather than accepting an all-in-one platform’s version of search, or content management, or personalization, you can select the best available solution for each function. This is how leading retailers are building genuinely differentiated experiences. Amplience focuses on content for commerce instead of trying to be a whole platform.
Independent scaling
Individual components can be scaled based on real-time demand. During peak trading periods, you scale checkout and search. Your content delivery keeps running at its usual cost. No over-provisioning, no unnecessary infrastructure spend. Amplience Dynamic Media delivers images and video through a multi-CDN setup, so it scales on its own when traffic spikes.
AI readiness
AI readiness is fast becoming one of the strongest reasons to go composable. Composable architectures, built on structured data and clean APIs, are significantly better positioned to connect with and take advantage of AI tools. Product data, pricing, inventory and content are all accessible to AI agents in a composable stack in a way that monolithic platforms simply cannot match. Amplience structures content so AI tools and agents can use it, and Amplience Workforce runs agentic content workflows on top.
Faster ROI
9 out of 10 organizations report that composable commerce meets or exceeds their ROI expectations. The modularity means you do not need to replace everything at once. Many retailers start with one or two components and build from there.
What goes into a composable commerce stack?
Every stack is different, but most enterprise retailers build from the same core parts.
Content and digital assets
Your CMS and DAM hold the copy, images and video that sell the product. Amplience CMS and Amplience DAM deliver that content to web, app, social and in-store screens from one place, with AI built into the workflow.
Frontend
The frontend controls what customers see. Frontend-as-a-service tools such as Alokai let you build a composable frontend even on top of a legacy backend, and Amplience connects to them through its APIs.
Commerce engine
The commerce engine runs your catalog, cart, pricing and orders. Amplience integrates with commerce platforms including commercetools, Elastic Path, Salesforce Commerce Cloud and Shopify Plus.
Product information management (PIM)
A PIM keeps product data in one place and sends it to every sales channel. Launch a new product line and every channel updates at once. Akeneo and inRiver are common choices, and Amplience can pull product data from your PIM so content and product information stay in step.
Customer data platform (CDP)
A CDP brings customer data from different sources into a single view, which is what makes personalization possible. Segment, Tealium and mParticle are popular with retailers.
Analytics and CRM
Analytics and BI tools show you what’s working, region by region and channel by channel. A CRM, connected to the rest of the stack, lets your service team see purchase history and respond faster.
Is composable commerce right for your business?
Composable commerce is not a one-size-fits-all answer. It delivers the most value for retailers and brands that need to:
Deliver consistent experiences across multiple channels at the same time.
Respond quickly to changing customer expectations or market conditions.
Integrate AI, personalization and emerging capabilities without platform constraints.
Scale specific capabilities independently during peak trading periods.
Break free from the limitations and pricing of a monolithic vendor.
Composable commerce does require investment. You need a capable technical team, good API governance and a clear view of which business capabilities you want to own and which you want to buy. For businesses with very simple, stable commerce needs, the additional complexity may not be worth it yet.
The biggest worry is usually risk. Connecting several vendors feels like a lot to get right, especially when you’re moving off a platform that has run the business for a decade. Pre-integrated starting points help. Commerce vendors and agencies offer pre-composed stacks with the commerce engine, CMS, search and personalization already connected, and Amplience is part of several, including solutions built with Elastic Path and Salesforce.
For enterprise retailers operating at scale, however, the question is how to go composable in a way that delivers value incrementally rather than requiring a big-bang replatforming project. The good news is that a phased approach works well with composable commerce by design.
How do you know it’s time to move from headless to composable?
If you already run a headless setup, you’re partway there. These are the signs it’s time to go further:
Customer expectations have outgrown your stack. Customers want personalized, consistent experiences across every channel, and your setup can’t keep up.
Growth is exposing scaling limits. Peak trading brings slowdowns or downtime because you can’t scale one part without scaling everything.
New tools take too long to add. Competitors launch AI features you can’t match because every new integration turns into a project.
Your team spends more time maintaining than building. Upgrading one part breaks another, and integration issues eat the roadmap.
Composable commerce in practice: how Amplience fits in
A typical composable commerce stack for an enterprise retailer might include a headless CMS and DAM for content, an API-first commerce engine, a cloud-native search platform and a custom frontend pulling everything together via API.
Amplience sits at the content and experience layer of that stack, managing and delivering rich media, product content, campaign assets and personalization logic across every channel from one place. The Very Group, The White Company and John Lewis are among the hundreds of enterprise retailers already using Amplience as part of their composable commerce architecture.
Landmark Group, a multi-brand, omnichannel retailer, used Amplience to scale content without growing the team. As James Dickson, Chief Product Officer at Landmark Group Digital, put it: “Amplience has helped us to save about 30 percent of what would have been required in terms of headcount for design, copy and merchandising.”
To see how Amplience fits into a composable commerce stack in more detail, including real customer examples and how to get started, explore how Amplience powers composable commerce.
Getting started with composable commerce
If you are already using headless technology in production, you are already on the path to composable commerce. The journey does not have to be a single giant leap. Most retailers start by identifying the parts of their current stack that are holding them back, replacing those first, and building out from there.
Find the bottleneck\ Work out which part of your stack slows you down most: content updates, search, checkout or something else.
Define what success looks like\ Set the outcomes you want from the first change, such as faster launches or fewer developer tickets.
Plan your architecture\ Map your frontend, backend, API layer and integrations, and decide what you’ll build and what you’ll buy.
Choose your first component\ Compare vendors on ease of use, scalability, integrations and support. If content is your bottleneck, that’s where Amplience comes in.
Build and test\ Develop against your existing stack and test with real content and traffic. The Amplience developer trial gives your team time to try it out first.
Launch, measure and repeat\ Watch closely after go-live, then move on to the next component.
For a detailed guide to executing a composable commerce strategy, including how to evaluate vendors, structure your teams and approach migration, see how leading retailers are building composable commerce with Amplience.
