What is a Composable Commerce Tech Stack?


Composable commerce tech stacks are comprised of various best-of-breed components that fit together seamlessly to meet the business requirements of an organization. It allows digital teams to deploy new features while improving experiences rapidly across all touchpoints. What do you consider a composable commerce stack?

Large, mature ecommerce organizations with experienced internal tech teams may benefit from taking this approach; however, the appropriate level of granularity for Packaged Business Capabilities must first be identified.


Modern commerce demands flexibility that cannot be provided through a monolithic architecture. Scalability of composable commerce stacks allows brands to offer differentiated customer experiences and outwit competitors; internal operational inefficiencies are also eliminated, and time-to-market is reduced by this approach, increasing e-commerce agility through replacing technologies with cost-effective alternatives without needing massive codebase overhauls.

Composable technology relies on microservices – individual modules of services that can be updated or upgraded on an as-needed basis – for its foundation. This approach offers several advantages over a traditional solution, including increased scalability, data management efficiency, and developer productivity gains. Furthermore, this solution requires fewer infrastructure resources while simultaneously offering an increased ability to allocate computing power more precisely across components of an app.

Scalability of composable solutions is particularly valuable to merchants with limited or changing business requirements, enabling companies to assemble best-of-breed solutions tailored to meet them specifically – for instance, by adding chatbots or search capabilities that enhance user experiences or offer tailored content – while the ability to swap out modules allows easy expansion as business demands shift.

Composable technology stacks are also more user-friendly, as their scalability does not require deep technical expertise from developers to update and deploy new features. This allows non-technical employees to perform critical functions, including adding features that help expand customer base growth.


Maintaining a competitive edge in today’s digital environment of customer expectations demands businesses adapt quickly. A composable tech stack enables retailers to customize and deliver personalized product experiences at every touchpoint rapidly; using microservices, API-first technology architecture, and cloud-native platform allows businesses to develop flexible platforms explicitly tailored for their individual business needs – examples being Harry Rosen, Ulta Beauty, and Mars (for their Buy Online Pick Up In Store feature).

Composable Commerce is a modular approach to software architecture that separates the customer-facing front-end presentation layer from back-end business logic and data layers, enabling companies to select best-of-breed solutions without worrying about integrating or deploying changes across an entire technology platform. Additionally, this flexibility allows for rapid response during times of change or disruption; for example, during the COVID-19 pandemic, many online stores had to reduce availability on their website in order to protect consumers’ safety and limit the spread of the virus; these changes were enabled via composable platform’s auto-scaling capabilities.

Composable technology stacks offer several distinct advantages when it comes to meeting business requirements, including flexibility, cost, speed, and internal operational efficiency. They’re an effective way to meet objectives such as increasing revenue, improving customer satisfaction, and creating cross-channel strategies, while their flexibility also allows brands to expand quickly into new channels or regions’ online presence.


Composable systems differ from monolithic ones in that they allow seamless integration of best-of-breed software tools, providing for quicker and less expensive responses to changing business requirements. They also help retailers offer e-commerce experiences tailored to their clientele.

Composable commerce systems feature an expansive technology stack encompassing various applications from back-end to front-end. To provide maximum flexibility and scale, these tools may be assembled using microservices or PBCs (precursors to headless CMS and progressive web apps). This approach results in scalable eCommerce architecture with uniform capabilities.

Integrations are integral for creating an agile tech stack capable of meeting customers’ evolving expectations, as they help retailers speed up time-to-market and enhance omnichannel customer experiences.

Before selecting and implementing a composable commerce tech stack, it is critical to set clear business goals and establish the needs that drive these goals. This will inform your selection process for selecting an appropriate technology platform. It is wise to evaluate all available options from multiple vendors before choosing one that best meets your business requirements and offers maximum value.


Composable commerce employs modern approaches and technologies such as MACH (Microservices, APIs, Cloud, and Headless) to deliver an agile digital framework. This decouples the front-end presentation layer from back-end commerce functionality and facilitates flexible integration of various best-of-breed solutions, giving merchants more excellent choices when it comes to selecting tools tailored specifically to their needs and quicker innovation. Furthermore, vendor lock-in is reduced drastically, and faster innovation occurs as a result.

Composable architectures are an excellent fit for complex ecommerce platforms, as they can be deployed on headless infrastructure and provide high scalability and resilience. Furthermore, this approach allows multiple developers to work independently from one another – making it more agile than traditional unified stacks – though this requires substantial technical expertise from internal development teams.

Security measures are of utmost importance in any composable commerce ecosystem since each component houses data and APIs that must be monitored for vulnerabilities. Furthermore, this model often necessitates more user logins across systems within its stack than traditional models do – thus, access governance is essential in this scenario.

Merchants looking to take full advantage of composable commerce should start by defining their business goals and areas for improvement. Once this information has been identified, merchants should choose an ideal tech stack that meets these goals and moves your company closer towards reaching them – cost-effectively with services like chatbots, search, personalization AI, and social commerce included as necessary. Be wary when choosing vendors promising turnkey solutions as there may be hidden fees involved, like subscription or access fees, that add extra costs over time.