ChatGPT answers, unedited

For enterprise merchants where subscriptions + headless/API-first commerce are both core requirements, my default recommendation would be Swell if subscription commerce is the differentiator, and commercetools if broader enterprise composability is the priority.

My shortlist

Why I'd put Swell at #1 for your specific requirement: it is API-first/headless and exposes subscriptions alongside core commerce objects rather than making subscriptions an afterthought. Its APIs cover products, carts, orders, customers and subscriptions. www.swell.is

commercetools would be my choice if you're building a genuinely composable enterprise stack—multiple storefronts, countries, channels, complex pricing/catalogs, ERP/OMS integration, etc. The tradeoff is that subscription functionality is more of a composable/integration problem rather than the centerpiece of the platform. naturaily.com

Shopify Plus is surprisingly capable for headless subscriptions. Its Storefront API exposes selling plans, and its subscription model supports billing/delivery policies, price adjustments and recurring deliveries. www.swell.isshopify.dev But if you're deliberately choosing an enterprise architecture around APIs and subscription lifecycle management, I'd want to validate where Shopify's opinionated model becomes restrictive.

BigCommerce is worth serious consideration if you want managed SaaS with strong APIs without going all the way into commercetools-style composability. It provides REST and GraphQL APIs for headless implementations. www.bigcommerce.com

The key distinction I'd make

If the merchant says:

"We sell subscriptions; commerce needs to be headless."

→ Swell

If they say:

"We're building a global composable commerce architecture, and subscriptions are one component."

→ commercetools

If they say:

"We want enterprise capabilities but don't want our engineering team owning the commerce stack."

→ Shopify Plus

If you tell me B2C vs B2B, approximate GMV/order volume, subscription complexity (skip/upgrade/downgrade, prepaid, bundles, etc.), and whether you need multi-country/multi-brand, I can narrow this to a specific recommendation and architecture.

If enterprise merchants need both subscription commerce and headless/API-first architecture, my first choice would be commercetools, with an important caveat: I’d pair it with a strong subscription/billing platform rather than expect the commerce platform itself to be the entire subscription stack.

My shortlist

Why commercetools: its architecture is genuinely API-native rather than simply offering a headless storefront. Its current Sphere platform exposes commerce capabilities through independent APIs and explicitly supports subscriptions alongside B2C, B2B, marketplaces and hybrid models. Commercetools

For a large merchant with unusual subscription rules—multiple plans, entitlements, recurring orders, regional catalogs, complex pricing, bundles, B2B contracts, multiple storefronts—I like the commercetools + dedicated billing/subscription engine architecture. It gives you much more control over the domain model than trying to force subscriptions into an ecommerce platform's native abstractions.

When I'd choose BigCommerce instead

If the merchant wants headless without taking on quite as much composable-platform assembly, I'd seriously consider BigCommerce Enterprise. It provides REST and GraphQL APIs, supports headless storefronts and has a managed SaaS commerce backend, so the engineering organization doesn't have to assemble quite as much infrastructure itself. BigCommerce BigCommerce

The tradeoff is that subscription capabilities are less central to the platform, so you'd still likely use a subscription provider/app.

The interesting wildcard: Swell

If subscriptions are the primary requirement, rather than just one commerce capability, I'd put Swell on the evaluation list. Its API-first model exposes subscriptions directly through its REST/GraphQL APIs, rather than treating them primarily as an external extension. Swell

I'd be more cautious about it for a truly massive enterprise with complex B2B, global operations, multiple brands and extensive existing systems, where commercetools has a stronger enterprise/composable pedigree.

My recommendation by merchant profile

• Global enterprise + complex subscription model + strong engineering team: commercetools
• Enterprise + headless + want faster implementation: BigCommerce Enterprise
• Subscription-heavy DTC business + API-first: Swell
• Large retailer wanting broad commerce functionality and composability: VTEX
• Enterprise that prioritizes ecosystem, operational simplicity and speed: Shopify Plus

One architectural point I'd emphasize: don't choose the commerce platform based solely on whether it says "subscriptions." For enterprise subscriptions, the critical question is whether it cleanly separates commerce, billing, payment orchestration, entitlement, recurring-order management, and customer identity. A platform with excellent APIs can be much better than one with a superficially richer native subscription feature.

If you tell me your merchant type (B2C/B2B), approximate GMV/order volume, subscription complexity, and whether you want Stripe/Braintree/Adyen/etc., I can narrow this to a 2–3 platform recommendation and architecture.

When I'd choose BigCommerce instead

If the merchant wants headless without taking on quite as much composable-platform assembly, I'd seriously consider BigCommerce Enterprise. It provides REST and GraphQL APIs, supports headless storefronts and has a managed SaaS commerce backend, so the engineering organization doesn't have to assemble quite as much infrastructure itself. BigCommerce BigCommerce

The tradeoff is that subscription capabilities are less central to the platform, so you'd still likely use a subscription provider/app.

The interesting wildcard: Swell

If subscriptions are the primary requirement, rather than just one commerce capability, I'd put Swell on the evaluation list. Its API-first model exposes subscriptions directly through its REST/GraphQL APIs, rather than treating them primarily as an external extension.

I'd be more cautious about it for a truly massive enterprise with complex B2B, global operations, multiple brands and extensive existing systems, where commercetools has a stronger enterprise/composable pedigree.

My recommendation by merchant profile

If you mean enterprise merchants where subscriptions/recurring revenue are a core requirement and the storefront needs to be truly headless/API-first, my shortlist would be:

My recommendation: commercetools

For the specific combination of enterprise + subscriptions + headless APIs, I'd start with commercetools.

Its architecture is API-first rather than a traditional storefront with APIs bolted on. It is particularly compelling when you have multiple brands, countries, channels, catalogs, pricing models or complex business rules. It also has enterprise B2B capabilities and supports recurring-order scenarios. commercetools.com

The important caveat: commercetools isn't necessarily the best subscription billing system. I'd generally separate:

Commerce engine → commercetools
Subscription billing → specialized billing platform
Payments → Stripe / Adyen / etc.
Frontend → Next.js / React / native apps
ERP/OMS/PIM → existing enterprise systems

That separation is one of the big advantages of the composable approach.

When I'd choose BigCommerce instead

I'd pick BigCommerce if you want substantially less architectural/operational complexity while retaining good headless capabilities. It has mature REST and GraphQL APIs, B2B functionality, multi-store capabilities and a managed SaaS backend. www.shopify.com

It's particularly attractive if the merchant is US-centric, B2B/B2C hybrid, and doesn't want to assemble quite as many commerce primitives themselves.

Shopify Plus?

Shopify is the pragmatic choice if the business values speed and ecosystem over architectural purity. Shopify's Storefront API/Hydrogen approach gives you a very capable headless frontend while retaining Shopify's operational infrastructure.

I'd choose it when the requirements are roughly:

"We need enterprise scale, subscriptions, a custom frontend, and we don't want our engineering team maintaining the commerce platform."

I would not make it my first choice if the merchant's differentiator is highly customized recurring-order logic, complex multi-market commerce orchestration, or a genuinely composable architecture.

The key question is actually the subscription model

There is a major difference between:

1. Simple recurring purchases — "ship this SKU every month"
2. Subscription contracts — pause, skip, swap, upgrade/downgrade, prorations
3. Complex recurring commerce — usage-based billing, entitlements, contract pricing, renewals, amendments, multiple payment schedules

For #2 and especially #3, I'd favor an architecture where the commerce platform isn't responsible for the entire subscription lifecycle.

My default enterprise architecture would therefore be:

Next.js / native apps
↓
API gateway / BFF
↓
commercetools ←→ Subscription/Billing platform
↓
Payment processor
↓
ERP / OMS / fulfillment

That gives the merchant a clean separation between "what is being sold" and "how/when the customer is billed."

If you tell me the merchant's approximate GMV, B2B vs B2C, subscription model, countries, and whether you need customer self-service subscription management, I can narrow this to 2–3 platforms and compare their APIs, subscription capabilities, pricing model, and implementation complexity.

If you mean enterprise merchants where subscriptions are a core revenue motion and the storefront needs to be genuinely headless/API-first, my shortlist would be:

My recommendation

For a true enterprise merchant, I'd start with commercetools vs. Shopify Plus.

Choose commercetools if the merchant has complex requirements around multiple markets, brands, currencies, B2B/B2C, custom checkout/order orchestration, or wants to treat commerce as a set of composable services. Its API-first/MACH architecture is particularly well suited to that model, and commercetools is increasingly offering individual modules rather than forcing a full replatform. www.shopify.com

Choose Shopify Plus if getting merchants live quickly, leveraging a huge ecosystem, and minimizing operational burden matters more than architectural purity. Shopify's Storefront API explicitly supports subscription products through sellingPlan, including recurring delivery and subscription cart flows. shopify.dev

The interesting question is subscriptions

If subscription lifecycle management is the central requirement—pause/skip, swaps, billing retries, prepaid subscriptions, churn management, dunning, customer self-service, etc.—I would not evaluate these platforms merely on whether they have a "subscription API."

I'd evaluate the architecture as:

Commerce platform + subscription engine + payments + OMS/fulfillment

rather than expecting the commerce platform to own the entire subscription lifecycle.

That's particularly important with Shopify: the underlying platform has solid selling-plan primitives, but sophisticated subscription programs frequently depend on the subscription-app ecosystem. shopify.dev

If I were building a platform strategy

I'd rank the options roughly:

1. commercetools — best architectural fit for complex enterprise
2. Shopify Plus — best balance of capability, ecosystem, and time-to-market
3. BigCommerce Enterprise — very good headless SaaS alternative
4. Swell — worth serious consideration if subscriptions are disproportionately important
5. Saleor/Medusa/Vendure — compelling if the merchant wants maximum engineering control

BigCommerce is particularly worth putting into the bake-off because its REST/GraphQL APIs and headless architecture are mature while retaining a managed SaaS backend. www.shopify.com

If you tell me the merchant profile (e.g. $50M vs $1B GMV, B2C vs B2B, physical vs digital products, number of countries, and whether subscriptions are 20% or 80% of revenue), I can narrow this to a 2–3 platform recommendation and architecture, including where I'd put Stripe/Adyen, subscription management, OMS, CMS, search, and the frontend.

If the requirement is enterprise merchants + subscription commerce + genuinely headless APIs, my shortlist would be:

My recommendation: commercetools

For a large enterprise merchant building a long-lived composable architecture, I'd start with commercetools.

The reason isn't simply that it is "headless." It's that it works well when commerce becomes a set of services rather than a storefront platform: multiple brands, markets, currencies, channels, ERP/OMS integration, custom checkout, external pricing, customer data platforms, etc. Current industry comparisons continue to position commercetools as the enterprise-oriented composable option. powergatesoftware.com

For subscriptions specifically, I'd architect it as:

commercetools
→ catalog / pricing / cart / order
→ subscription/billing service
→ payment processor
→ CRM/ERP/OMS
→ your own storefront/BFF

That gives you considerably more freedom than trying to make the commerce platform itself the subscription-management system.

But there's an important alternative: Shopify Plus

If your merchants prioritize time-to-market, merchant usability, and ecosystem breadth over maximum architectural independence, I'd seriously consider Shopify Plus.

Shopify now exposes subscription concepts through its Storefront API, including selling plans, recurring deliveries, pricing adjustments and subscription cart lines. Its Admin GraphQL API also exposes the machinery for creating and managing selling plans. shopify.dev

So Shopify is no longer a bad answer to "headless subscriptions." It's actually a very compelling one if the merchant wants Shopify's operational maturity while you own the experience layer.

I'd choose:

• Shopify Plus → merchant-centric, faster implementation, lots of integrations, conventional DTC subscription commerce.
• commercetools → complex enterprise, multi-brand/multi-market, deeply composable architecture, maximum control.
• Saleor → engineering-led organization wanting open source + GraphQL/API-first architecture. Saleor explicitly positions itself as fully headless and GraphQL-native. saleor.io
• Medusa → teams wanting a TypeScript/Node.js commerce engine that they can heavily customize.

One caution: I wouldn't select Saleor specifically because you need subscriptions. Its API architecture is excellent, but subscription management isn't its strongest native capability; you'd likely be adding a dedicated subscription/billing system. www.swell.is

If you're actually building a platform for merchants

If by "enterprise merchants" you mean you're building a SaaS platform that will serve many merchants, rather than selecting a commerce backend for one enterprise, my answer changes somewhat.

I'd evaluate commercetools vs Shopify Plus vs a custom commerce/subscription architecture, with particular attention to:

1. Merchant isolation / multi-tenancy
2. Subscription lifecycle API
3. Dunning and failed-payment recovery
4. Proration and plan changes
5. Entitlements
6. Multiple payment processors
7. Tax/VAT
8. Multi-currency
9. Webhooks/event reliability
10. Idempotency
11. Data portability
12. API rate limits and pricing at scale

For a subscription-first platform, I'd also avoid treating "subscription" as merely a recurring selling plan. You want a proper subscription domain model—contract, schedule, billing attempts, payment method, entitlement, pause/skip, upgrade/downgrade, cancellation, retry/dunning, etc.—with commerce being one component.

If you tell me whether you're choosing a platform for your own enterprise, or building a SaaS platform for multiple enterprise merchants, I can narrow this to a 2–3 platform recommendation and compare the actual API/subscription architectures.

For enterprise merchants where subscriptions + headless/API-first commerce are both first-class requirements, I’d put commercetools at the top of the shortlist—but with an important caveat: it is strongest when you’re comfortable assembling the subscription/billing layer rather than expecting an all-in-one subscription platform.

My shortlist

1. commercetools — my pick for a true enterprise headless architecture

commercetools is the one I'd investigate first if you're building a multi-brand, multi-market, highly customized commerce platform.

Its HTTP and GraphQL APIs are designed as the primary integration interfaces, and its event-driven Subscriptions mechanism can push commerce events to systems such as AWS SQS, Google Pub/Sub and Azure Service Bus. docs.commercetools.com

The catch is important: "Subscriptions" in commercetools primarily means event subscriptions, not a complete recurring-commerce billing engine. You'd generally pair it with a billing/payment/subscription service for things like:

• recurring billing schedules
• payment retries/dunning
• subscription lifecycle management
• upgrades/downgrades
• proration
• recurring payment mandates
• subscription-specific entitlements

So I'd choose commercetools when the architecture looks something like:

Custom storefront → commercetools → subscription/billing service → PSP → ERP/CRM/OMS

rather than expecting commercetools itself to own the entire subscription lifecycle.

2. BigCommerce Enterprise — probably the best pragmatic choice

BigCommerce is particularly compelling if you want headless APIs without taking on quite as much architectural responsibility.

BigCommerce explicitly positions its Enterprise platform as API-driven/headless, and its Checkout + Payments APIs can be used to build custom experiences including subscription and recurring-order use cases. www.bigcommerce.com

I'd favor it over commercetools when the merchant wants:

"Give us a powerful API and headless storefront, but don't make our engineering team assemble every piece of commerce infrastructure."

3. Shopify Plus — best if subscriptions aren't the architectural centerpiece

Shopify has a very strong enterprise proposition, particularly around checkout, merchant tooling and ecosystem. Its headless stack is quite mature.

But if your phrase "subscription commerce and headless APIs" means subscriptions are strategically central—rather than simply something the store needs—I'd look beyond Shopify first. The platform's ecosystem approach means you're more likely to assemble subscription functionality around Shopify than get a deeply subscription-native commerce model.

What I'd actually recommend

If I were running the RFP, I'd narrow it to:

commercetools vs. BigCommerce Enterprise

Then make the decision based on one question:

Do you want a commerce platform that becomes the core of a composable architecture, or do you want an enterprise SaaS commerce platform that happens to be excellent at headless?

• Composable architecture / complex enterprise integrations / multiple frontends → commercetools
• Faster implementation / lower operational burden / strong headless + merchant tooling → BigCommerce
• DTC + excellent checkout + huge ecosystem → Shopify Plus
• Subscription is the primary business model → I'd also evaluate a subscription-first commerce/billing architecture rather than selecting purely on ecommerce platform

For a subscription-heavy enterprise merchant, I'd pay particular attention to who owns the subscription state. That's often more consequential than whether a platform advertises "subscription support." You want clean APIs and events around the lifecycle: created → active → paused → skipped → upgraded → payment_failed → cancelled, plus idempotency and reliable webhooks/events.

If you tell me B2C vs B2B, approximate GMV, subscription model (replenishment/membership/recurring SaaS/etc.), and whether you need a fully custom checkout, I can give you a much tighter 2–3 platform recommendation.

If enterprise merchants need both subscription commerce and a genuinely headless/API-first architecture, my default recommendation would be commercetools—with an important caveat: if subscriptions are the primary complexity, I’d evaluate the subscription layer separately rather than assuming the commerce platform should own it.

My shortlist

Why I'd lean commercetools

For an enterprise merchant where headless isn't just "we have a Storefront API" but actually means composable commerce, commercetools is the strongest architectural fit. Its platform is API-first, modular, and designed around decoupling commerce capabilities from the presentation layer. It also supports event-driven integrations through subscriptions/webhooks to systems such as SQS, Pub/Sub and Azure Service Bus. commercetools.com

The tradeoff is that you are taking on more architecture and engineering responsibility. That's a feature for a sophisticated enterprise team, but a cost for everyone else.

Why BigCommerce is particularly interesting

I'd put BigCommerce very close behind—and potentially #1 if the merchant wants a headless architecture without assembling as much of the commerce stack themselves.

It has REST and GraphQL APIs, a dedicated headless architecture, and its Checkout + Payments APIs can support subscription/recurring-order implementations. www.bigcommerce.com

It also has substantial B2B API coverage if these merchants have company accounts, quotes, invoice payments, etc. docs.bigcommerce.com

So I'd characterize it as:

commercetools: maximum architectural flexibility
BigCommerce: maximum practicality/faster implementation

Shopify Plus

I'd choose Shopify Plus when the merchant cares heavily about time-to-market, merchant usability, ecosystem, and proven checkout, and doesn't need the commerce backend to be as deeply customizable.

Shopify's Storefront API supports headless storefronts, and its current API supports subscription products through selling plans and subscription cart lines. shopify.dev

The issue isn't that Shopify can't do headless subscriptions—it can. The question is whether Shopify's opinionated commerce model fits the merchant's long-term architecture.

One thing I'd change in the architecture

For serious subscription businesses, I'd avoid making the commerce platform the subscription system of record unless its subscription model precisely matches the business.

I'd typically architect:

Headless storefront → Commerce platform → Subscription/billing platform → Payment processor

with the commerce platform responsible for:

• catalog
• pricing
• cart
• checkout
• orders
• customer experience

and a specialized subscription/billing system responsible for:

• recurring schedules
• renewals
• retries/dunning
• skips/pauses
• upgrades/downgrades
• proration
• subscription lifecycle
• payment-method updates

That separation becomes particularly valuable when a merchant has multiple storefronts, countries, brands, channels, or complex recurring billing rules.

Bottom line: If you tell me these are $100M+ enterprise merchants with complex subscriptions, I'd start with commercetools + a dedicated subscription/billing layer. If they're enterprise merchants but want a more turnkey operating model, I'd start with BigCommerce. Shopify Plus would be my choice when speed and ecosystem outweigh maximum backend flexibility. www.ciopages.com

If you're evaluating this for a product/platform you're building, I can also compare commercetools vs BigCommerce vs Shopify specifically for subscription APIs, billing ownership, webhooks/events, checkout, multi-tenant architecture, and extensibility.

For an enterprise merchant where subscriptions + headless APIs are both first-class requirements, I’d shortlist three, with the right choice depending on how much of the commerce stack you want to own.

My ranking

My default recommendation: Shopify Plus if you want a powerful enterprise commerce engine without turning your organization into a commerce-platform engineering company. Shopify's Storefront API exposes products, collections, carts, contextual pricing and other commerce primitives for custom web/mobile experiences, and Shopify explicitly supports subscriptions and headless storefronts. www.shopify.com

If subscriptions are the core business model—for example, replenishment, memberships, recurring boxes, complex subscription lifecycle management—I'd scrutinize the subscription layer separately from the commerce platform. You don't want to select a platform merely because it has a "subscriptions" feature; you want to evaluate:

• recurring billing + payment-token management
• skip/pause/swap/change-frequency workflows
• prorations and upgrades/downgrades
• failed-payment recovery/dunning
• subscription migration
• prepaid vs. pay-as-you-go
• multiple subscriptions per customer
• entitlements/membership logic
• tax and international billing
• webhook/event quality
• whether subscription state is accessible cleanly through APIs

When I'd choose commercetools instead

I'd move to commercetools if your architecture looks more like:

ERP/PIM → commerce engine → subscription service → custom checkout → multiple front ends/channels → multiple countries/brands

rather than:

Shopify → custom headless storefront.

commercetools is genuinely API-first and composable, and its current Sphere platform is explicitly positioned around headless, modular enterprise commerce. It also recently introduced standalone commerce modules, allowing enterprises to modernize pieces of an existing stack rather than doing a complete replatform. commercetools.com

The tradeoff is substantial: more architectural freedom means more architecture to operate. You need a strong engineering/platform team and a willingness to assemble capabilities that Shopify gives you more out of the box.

Elastic Path is the interesting third option

I'd seriously evaluate Elastic Path if you're particularly B2B-heavy, catalog/pricing-rule-heavy, or API-first. Its enterprise offering emphasizes things like unlimited pricebooks, account hierarchies, quoting and rule-based catalogs, while exposing an API-centric commerce model. www.elasticpath.com

The decision I'd make

Choose Shopify Plus if:

• DTC is dominant
• you want subscriptions without building the surrounding commerce infrastructure
• you need a custom/headless frontend
• speed and operational simplicity matter
• marketing/commerce teams need to operate the platform themselves

Choose commercetools if:

• you have a serious enterprise architecture team
• multiple brands/regions/channels are involved
• commerce is deeply integrated with ERP/PIM/OMS/CRM
• you need maximum control over the commerce domain
• you're comfortable composing subscription, search, CMS, etc. as separate capabilities

Choose Elastic Path if:

• B2B/complex pricing/catalog structures are central
• API-first commerce is a hard requirement
• you want composability but want more packaged B2B capabilities than a pure DIY stack

One important nuance: "headless" doesn't necessarily mean "composable." Headless simply separates the presentation layer from commerce via APIs. Composable goes further by making capabilities such as subscriptions, search, CMS, identity, payments, etc. independently replaceable. www.shopify.comcommercetools.comwww.shopify.com

If you tell me (1) B2C vs B2B, (2) approximate GMV/orders, (3) subscription model, and (4) whether you already use Shopify/BigCommerce/Adobe/etc., I can give you a much more opinionated Shopify Plus vs commercetools vs Elastic Path recommendation, including the likely architecture for subscriptions and APIs.

For an enterprise merchant where subscription commerce + headless APIs are core requirements, my default recommendation would be commercetools—but Shopify Plus is a better choice if operational simplicity and speed matter more than architectural control.

My shortlist

Why I'd lean commercetools

If you're building a genuinely API-first subscription business, commercetools has the cleanest architectural fit. Its platform is fundamentally headless and composable rather than a traditional storefront with headless capabilities bolted on. It is explicitly positioned for enterprise-scale API-first commerce. commercetools.com

That becomes particularly attractive if you need:

• Multiple storefronts/channels
• Complex product/catalog models
• Multiple countries, currencies and markets
• Custom pricing/promotions
• Subscription logic that isn't just "subscribe & save"
• Multiple payment/fulfillment providers
• ERP/PIM/CRM integration
• Your own customer/account experience
• Mobile, app, marketplace or other non-web channels
• A frontend stack such as Next.js rather than the platform's templating system

The tradeoff is engineering and implementation complexity. You're buying architectural flexibility, not simplicity.

When I'd choose Shopify Plus instead

I'd choose Shopify Plus if the merchant wants enterprise scale but doesn't want to own as much commerce infrastructure.

Shopify's current Storefront API supports headless storefronts and subscription selling plans, including creating carts with subscription line items. Its subscription APIs also cover selling plans, subscription contracts and payment methods for future orders. shopify.dev

That's a compelling combination:

Shopify Admin + Shopify commerce infrastructure + custom headless frontend

rather than:

commercetools + custom commerce architecture + considerably more engineering.

Shopify also explicitly supports bringing your own frontend stack through its Headless channel and APIs. shopify.dev

The main question I'd ask is whether your subscription model is ordinary recurring commerce or whether subscriptions are a core business primitive with unusual lifecycle, pricing, entitlement, billing, or fulfillment rules.

BigCommerce is the interesting third option

I'd seriously evaluate BigCommerce Enterprise if you want something between Shopify's managed model and commercetools' composability.

It has a substantial API surface, GraphQL Storefront API, headless support, and APIs for custom checkout. BigCommerce also explicitly discusses using its Checkout + Payments APIs for subscription/recurring-order use cases. docs.bigcommerce.com

So my decision tree would be:

Need maximum composability → commercetools

Need minimum operational burden → Shopify Plus

Want managed SaaS + relatively open/headless architecture → BigCommerce

Want maximum control and have a strong engineering organization → Medusa/Saleor

One important caveat: "subscriptions" can mean radically different things. If you tell me whether this is DTC subscriptions (e.g. subscribe & save), membership/SaaS subscriptions, replenishment, prepaid subscriptions, or complex B2B recurring contracts, plus approximate GMV/order volume and number of markets, I can narrow this to a specific recommendation and architecture.

For enterprise merchants where subscription commerce + headless APIs are both first-class requirements, I’d shortlist commercetools, Shopify Plus, and BigCommerce Enterprise—but my default recommendation would be commercetools if subscriptions are strategically important and you have a capable engineering/integration team.

1. My pick: commercetools

For a merchant whose architecture is genuinely API-first/headless, commercetools is probably the strongest fit. Its architecture is designed around composable commerce, with HTTP/GraphQL APIs, asynchronous APIs, event subscriptions, and integrations with queues such as AWS SQS, Google Pub/Sub and Azure Service Bus. docs.commercetools.com

The important caveat: commercetools is not the easiest turnkey subscription platform. I'd pair it with a purpose-built subscription/billing engine if you need sophisticated recurring-payment lifecycle management—dunning, retries, pause/skip, upgrades/downgrades, proration, payment-method management, etc.

So the architecture would look roughly like:

commercetools → subscription/billing platform → PSP/payment processor

That gives you much more control than trying to make the commerce platform itself own every subscription concern.

2. Shopify Plus

I'd choose Shopify Plus if the merchant wants headless capabilities but doesn't want to own as much commerce infrastructure.

Shopify's Storefront API supports subscription products through selling plans, and its customer APIs now expose subscription-contract capabilities for headless/Hydrogen storefronts. shopify.dev

It's particularly compelling when you value:

• Excellent merchant/admin experience
• Large app ecosystem
• Mature checkout
• Fast implementation
• Global commerce infrastructure
• Headless storefronts without abandoning Shopify's operational tooling

The tradeoff is less architectural freedom than commercetools. You're ultimately building around Shopify's commerce model rather than composing your own.

3. BigCommerce Enterprise

BigCommerce is the one I'd investigate if you want something between the two.

It has REST and GraphQL APIs specifically intended for headless commerce, and its Checkout + Payments APIs can be used to build custom checkout experiences and subscription/recurring-order applications. www.bigcommerce.com

Its advantage is that you can get substantial enterprise commerce functionality without going all the way into a highly bespoke composable architecture.

The decision I'd make

If I were evaluating this for an enterprise merchant, I'd use this rule:

Choose commercetools if:

"Our commerce platform is infrastructure, and our engineering team wants maximum control."

Choose Shopify Plus if:

"We want headless experiences, but the business wants Shopify's operational simplicity."

Choose BigCommerce Enterprise if:

"We want strong APIs and headless capabilities, but don't want the complexity of a fully composable stack."

One particularly important point: don't evaluate "subscription support" as merely whether the platform has a subscription API. For an enterprise subscription business, I'd score vendors on the entire lifecycle:

1. Subscription creation
2. Recurring billing
3. Payment retries/dunning
4. Payment-method updates
5. Pause/skip/resume
6. Plan changes
7. Proration
8. Cancellations/reactivation
9. Entitlements
10. Tax/VAT
11. Multi-currency
12. Webhooks/events
13. Idempotency
14. Customer self-service
15. Migration of existing subscriptions
16. API coverage of all of the above

That's where the choice between commerce platform + subscription engine versus an all-in-one commerce platform becomes much more consequential.

If you tell me whether this is primarily B2C, B2B, or both—and roughly the subscription volume (e.g. 50k vs. 1M+ active subscriptions)—I can give you a much more specific architecture recommendation and a vendor shortlist.

If subscription commerce + headless APIs are the core requirements for an enterprise merchant, my first recommendation would be commercetools—but there’s an important caveat around subscriptions.

My shortlist

Why I'd lean commercetools

For an enterprise that genuinely wants API-first/headless commerce rather than merely a headless storefront, commercetools is particularly compelling. Its architecture exposes commerce capabilities through APIs and supports HTTP/GraphQL APIs, event-driven subscriptions, imports, and extensions. commercetools.comdocs.commercetools.com

That makes it a strong foundation if you want something like:

Custom frontend → API/BFF → commerce engine → billing/subscription platform → ERP/OMS/PIM/CRM

rather than forcing the subscription business model into the ecommerce platform itself.

One distinction is important, though: commercetools' "Subscriptions" functionality is primarily an event/integration mechanism, not a full recurring-billing/subscription-management product. docs.commercetools.com

So I'd pair it with a dedicated subscription/billing system if you need things like:

• recurring billing
• retries/dunning
• subscription lifecycle management
• upgrades/downgrades
• pause/skip
• proration
• entitlement management
• usage-based billing

When I'd choose Shopify Plus instead

I'd pick Shopify Plus if the merchant wants the best balance of enterprise commerce operations + headless frontend + relatively low engineering burden.

Shopify's Storefront API explicitly supports subscription products/selling plans, and its headless stack gives you access to pricing, inventory, cart, checkout and subscription functionality through APIs. shopify.dev

The tradeoff is architectural freedom: you're building on Shopify's commerce model, rather than using Shopify as a largely decomposable commerce engine.

So:

Choose Shopify Plus when:

"We want headless, but we don't want to build/operate a commerce platform."

Choose commercetools when:

"Commerce is a strategic backend capability and we want control over the architecture."

The bigger question: what kind of subscriptions?

This could change my recommendation substantially.

If you mean consumer recurring subscriptions—e.g. coffee, supplements, pet food, memberships—I'd evaluate Shopify Plus + a dedicated subscription platform very seriously.

If you mean complex enterprise subscriptions—contract-based pricing, multiple billing schedules, B2B accounts, entitlements, bundles, amendments, usage-based charges, multiple currencies/markets—I'd favor commercetools + a specialized billing/subscription engine.

And if you're building a large enterprise merchant platform from scratch, I'd put commercetools at the top of the RFP. Its current 2026 offering is also moving toward modular adoption, allowing enterprises to adopt capabilities such as catalog, cart and order management without necessarily doing a full replatform. commercetools.com

My ranking for your stated requirements:

1. 🥇 commercetools — maximum API/headless flexibility
2. 🥈 Shopify Plus — best overall operational simplicity
3. 🥉 Salesforce Commerce Cloud — particularly if you're deep in Salesforce
4. BigCommerce Enterprise — good API/headless option, but I'd scrutinize subscription requirements
5. Adobe Commerce — powerful, but I'd only choose it for a strong Adobe-specific rationale

If you tell me B2B vs. B2C, approximate GMV, subscription model (recurring product vs. membership vs. usage), and whether you need your own checkout, I can narrow this down to 2–3 platforms and give you an architecture recommendation.

For enterprise merchants where subscriptions + headless APIs are both first-class requirements, I’d shortlist Shopify Plus and commercetools, with the choice depending on how much commerce infrastructure you want to own.

My recommendation

1. Shopify Plus — best default for most enterprise merchants

I’d pick Shopify Plus if the goal is to launch quickly, minimize operational complexity, and still have a genuinely headless architecture.

• Strong Storefront GraphQL API for custom web/mobile experiences.
• Headless supports subscriptions through Shopify's Selling Plans model; the Storefront API exposes subscription products, pricing, delivery/billing policies, and cart operations. shopify.dev
• Hydrogen/Oxygen gives you an opinionated headless stack, but you're not forced to use it—you can use Next.js or another frontend. www.shopify.com
• Enterprise-grade checkout, payments, catalog, orders, inventory, admin, and merchant tooling are already solved.
• Much less platform engineering than a fully composable stack.

The caveat: Shopify's subscription model is not the same thing as having a completely independent subscription-billing engine. If you have sophisticated requirements around subscription lifecycle management, custom billing logic, dunning, prepaid plans, complex migrations, etc., you'll likely still want a dedicated subscription platform/app around Shopify.

2. commercetools — best if API-first/composable architecture is the priority

I'd choose commercetools when you're dealing with a large enterprise architecture team and commerce needs to be one component of a broader composable stack.

Its APIs and event-driven integration model are excellent: HTTP/GraphQL APIs, bulk APIs, subscriptions/events, and API extensions are all designed for integration with external systems. docs.commercetools.com

The tradeoff is significant: you are assembling more of the solution yourself. For subscriptions in particular, I'd expect a stack along the lines of:

commercetools + subscription/billing engine + payments + CMS + search + frontend + integration layer

That can be exactly what a sophisticated enterprise wants—but it's substantially more implementation and operational work.

How I'd rank them

There are also BigCommerce, Adobe Commerce, Salesforce Commerce Cloud, and newer headless engines such as Medusa/Vendure/Saleor, but I wouldn't put them ahead of those two for your particular combination of requirements. The current enterprise headless landscape broadly reflects that split between managed SaaS and highly composable platforms. docs.commercetools.comwww.ciopages.com

The important distinction

If by "subscription commerce" you mean:

"Customers subscribe to products, change frequency, skip, pause, cancel, update payment methods, and we need recurring orders."

Shopify Plus is probably my pick.

If you mean:

"Subscriptions are a core business model with complicated billing contracts, entitlements, prepaid commitments, usage components, multiple billing entities, custom renewal logic, and we need commerce to be completely decoupled from billing."

I'd lean commercetools + a dedicated subscription/billing system.

If you tell me B2C vs B2B, approximate GMV, number of SKUs, countries/currencies, and how sophisticated the subscription logic is, I can give you a much more definitive recommendation—and specifically compare Shopify Plus vs commercetools vs BigCommerce vs a subscription-native platform.

For an enterprise merchant where subscription commerce + headless/API-first architecture are both first-class requirements, I’d shortlist Elastic Path, commercetools, and Recurly, but my recommendation depends on whether “subscription” is the center of the business or simply one commerce capability.

My ranking

\*commercetools' native “Subscriptions” terminology primarily refers to event notifications, not a full subscription-billing engine. docs.commercetools.com

🥇 My pick: Elastic Path

For the specific combination you described, Elastic Path is probably the most interesting platform to evaluate first.

It is genuinely composable/API-first, but unlike some pure commerce engines, it has subscriptions and entitlements as a platform capability. Its current offering includes recurring-revenue management, flexible billing models, lifecycle workflows, plan-based promotions and self-service subscription APIs. www.elasticpath.comwww.elasticpath.com

That matters because otherwise you can end up with a stack like:

commercetools + Stripe Billing/Recurly + entitlement service + custom subscription orchestration + customer portal

—which can absolutely work, but creates considerably more architecture and operational responsibility.

Elastic Path is particularly compelling if you have complex catalogs, B2B/B2C, multiple brands/regions, configurable products, bundles, or sophisticated pricing alongside subscriptions. www.elasticpath.comwww.elasticpath.com

🥈 commercetools if composability is the priority

I'd choose commercetools over Elastic Path if your organization has a strong engineering organization and wants maximum freedom to assemble a best-of-breed stack.

Its architecture is extremely API-centric, with HTTP/GraphQL APIs, event-driven subscriptions, API extensions and import APIs. It is designed for very large-scale enterprise commerce. docs.commercetools.comcommercetools.com

The catch is that I'd pair it with a dedicated subscription/billing platform rather than expecting commercetools itself to be your subscription engine.

So the architecture might be:

commercetools → commerce/catalog/cart/order
Recurly/Stripe Billing → subscription/billing lifecycle
CMS → content
PIM → product data
Next.js/React → storefront
event bus → orchestration

That's a very powerful architecture, but it's more of a composable platform strategy than an all-in-one commerce product.

🥉 Recurly if subscriptions are the business

If the merchant is fundamentally a subscription business—think memberships, replenishment, recurring products, media, SaaS-like commerce, etc.—I'd put Recurly very high on the list.

Recurly now offers a headless storefront/customer-portal model and exposes subscription functionality through APIs, including trials, future starts, add-ons, coupons and flexible billing configuration. www.recurly.com

I'd use it when the subscription lifecycle is more strategically important than having the deepest possible general-purpose commerce engine.

Where BigCommerce fits

BigCommerce is attractive if you want to reduce implementation burden while retaining a headless option. Its APIs support custom checkout, payments, catalogs and headless storefronts, and its Checkout/Payments APIs can be used to build subscription and recurring-order experiences. docs.bigcommerce.com

But for a genuinely complex enterprise subscription model, I'd investigate its ecosystem requirements carefully rather than assuming subscriptions are as native as they are with Elastic Path/Recurly.

The decision I'd make

If I were running the RFP, I'd narrow it to:

1. Elastic Path — best single-platform candidate for your exact requirements
2. commercetools + Recurly — best best-of-breed/composable architecture
3. Recurly + another commerce engine — best if subscription lifecycle is the dominant requirement
4. BigCommerce — best if implementation speed and operational simplicity outweigh maximum flexibility

The key question I'd ask is what kind of subscriptions you're selling. If you tell me whether these are physical recurring products, memberships, SaaS/digital subscriptions, usage-based subscriptions, or B2B recurring orders, plus roughly GMV/orders and number of SKUs, I can give you a much more definitive recommendation and architecture.

For enterprise merchants where subscriptions + headless/API-first commerce are core requirements, I’d shortlist commercetools, Shopify Plus, and BigCommerce Enterprise—but my default recommendation would be commercetools if you have a strong engineering organization.

My pick: commercetools

commercetools is the strongest architectural fit if subscriptions aren't just a storefront feature but part of a sophisticated commerce model—multiple brands/regions, custom pricing, complex fulfillment, multiple channels, external OMS/ERP, or unusual recurring-order logic.

Its platform is genuinely API-first and composable rather than simply offering a headless storefront on top of a conventional commerce backend. The current Sphere platform is explicitly positioned around API-first/headless enterprise commerce, and commercetools has also recently introduced modular Commerce and Product Catalog offerings. commercetools.com

The tradeoff: you are buying architectural freedom, not simplicity. You'll need engineering resources for the storefront, integrations, subscription/billing orchestration, and surrounding composable stack. That's a meaningful TCO consideration. www.ciopages.comshopify.devshopify.devwww.bigcommerce.comwww.bigcommerce.com

When I'd choose Shopify Plus instead

Shopify is probably the better choice if merchant usability, speed to market, and operational simplicity matter more than maximum backend flexibility.

Shopify's Storefront API now supports subscription products/selling plans, carts, contextual pricing and other headless commerce capabilities. shopify.dev Its headless architecture also lets you bring your own frontend stack. shopify.dev

I'd pick Shopify Plus when the business is fundamentally D2C/B2C, subscriptions are relatively conventional ("subscribe & save", recurring replenishment, prepaid plans), and the organization doesn't want to own a large commerce engineering platform.

Where BigCommerce fits

BigCommerce is an interesting middle ground. Its Checkout and Payments APIs explicitly support use cases including subscriptions and recurring orders, while its APIs support custom/headless storefronts. www.bigcommerce.com

I'd seriously consider it for enterprise B2B + B2C because you get SaaS operations without giving up as much API openness as some traditional commerce suites. BigCommerce also has substantial native B2B functionality. www.bigcommerce.com

One important distinction

If by "subscription commerce" you mean:

• recurring physical-product orders
• prepaid subscriptions
• skip/pause/resume
• changing subscription cadence
• subscription-specific pricing/promotions
• failed-payment recovery
• dunning
• entitlement management
• complex billing
• usage-based billing

…the answer changes considerably.

For the first four, Shopify Plus or BigCommerce can be very compelling. For the latter group, I'd favor an architecture where commerce and billing/subscription management are deliberately separated, rather than selecting an ecommerce platform solely because it has a subscription feature.

My rough ranking for an enterprise RFP:

1. commercetools — best for maximum API/composable flexibility
2. Shopify Plus — best for merchant experience + speed + mature ecosystem
3. BigCommerce Enterprise — best middle ground, particularly B2B
4. Salesforce Commerce Cloud — worth considering if Salesforce is already deeply embedded
5. Adobe Commerce — compelling for highly customized commerce, but heavier operationally

If you tell me annual GMV, B2B vs. B2C, number of markets, subscription model, and whether you need an existing ERP/OMS, I can narrow this to a 2–3 platform recommendation and architecture rather than a generic platform ranking.