TL;DR: Shopify Plus and BigCommerce Enterprise both market themselves as the answer for growing B2B and DTC brands, and both can process the same order volume without blinking during a sale. What separates them shows up later, in how each platform enforces a negotiated price at checkout, how far its API opens before your developers hit a wall, and what breaks when your ERP has to sync in real time.
Teams weighing Shopify Plus vs BigCommerce Enterprise already know both platforms can handle six and seven-figure revenue without crashing during a launch. The harder question is which one keeps working the way your business operates once the demo ends and real order volume starts moving through it.
A contract price gets quoted correctly by sales, but the storefront shows something else at checkout. Nobody notices until an ERP sync misses a batch of orders overnight and a customer calls asking why the shipment never moved.
Shopify Plus and BigCommerce Enterprise (now rebranded Performance) both list checkout customization, high-volume API access, and dedicated support on their sales pages. None of that runs your workflow. The decision comes down to keeping your pricing, ERP, approvals, inventory, and checkout logic working the way they already do. The platform has to bend around that reality, and that breaks into four questions:
It helps to frame the decision the way Optimum7 sees it in real projects. Shopify Plus and BigCommerce Enterprise are both capable platforms, and the choice comes down to where your business needs flexibility: app ecosystem, catalog scale, or payment options. Optimum7 has built and operated stores on both platforms for years, and the video below gives the short version before we get into the full comparison.
The Operating Differences That Decide the Platform Fit
A clean comparison starts by separating what is easy to see from what decides the build. Monthly fee, app marketplace, theme flexibility, and sales-page features are visible early. Contract pricing, checkout rules, approval paths, ERP sync, and inventory logic only reveal themselves when the platform has to support real buyers, real orders, and real exceptions.
The table below breaks down pricing, checkout, B2B functionality, API access, and migration risk, starting with the number every contract negotiation comes back to: cost.
| Category | Shopify Plus | BigCommerce Enterprise (Performance) |
|---|---|---|
| Pricing model | $2,500/mo on a 1-year term or $2,300/mo on a 3-year term, moving to a variable revenue-share fee for complex accounts | Custom quote starting around $1,499/mo, priced on GMV with a $250K/mo cap and 0.6% overage |
| Checkout customization | Checkout Extensibility and Shopify Functions inject custom logic, like credit checks or payment terms, without touching core checkout code | Open checkout API built into the base architecture, no separate unlock tier required to customize |
| B2B native functionality | Company accounts, custom price lists, and payment terms ship natively, but layered approval logic needs a custom build on top | B2B Edition ships more role and approval logic out of the box, at the cost of more configuration up front |
| API and customization ceiling | GraphQL Storefront API and a headless-ready architecture, backed by the larger app marketplace | Fully open SaaS API with fewer platform-level restrictions, smaller app marketplace |
| ERP and migration risk | Rebuilding checkout logic natively is standard; legacy ERP sync needs middleware | Native flexibility for ERP-driven pricing and inventory sync carries over more directly during migration |
| Best fit | DTC-heavy brands with growing B2B, deep app and agency ecosystem needs | Complex B2B and industrial catalogs that need ERP and inventory logic to work natively |
These differences don't stay in separate boxes after implementation starts. Checkout customization decides how payment terms and approval rules get enforced, and API access determines how cleanly ERP, inventory, and customer-specific pricing stay connected under real order volume.
Cost gives the comparison its first real constraint.
Shopify Plus no longer fits the old $2,000-a-month shorthand. Pricing now starts at $2,500 a month on a 1-year term or $2,300 a month on a 3-year term for standard setups, then moves into variable platform fees as revenue model and operational complexity enter the equation (Shopify, 2026). Payment processing, a 0.20% fee on third-party processors, and $300 a month for each expansion store past the first nine change the number again.
BigCommerce Enterprise has also changed, since the Enterprise plan was renamed Performance on June 1, 2026 (BigCommerce, 2026). Pricing is still custom-quoted, starts around $1,499 a month, and scales with GMV. That starting quote comes with a $250K monthly GMV cap and a 0.6% overage fee past that point. If a BigCommerce Scale plan crosses $2 million in trailing twelve-month revenue, the account moves into Performance automatically.
The pricing comparison only becomes useful when it's tied to implementation. A lower monthly platform fee doesn't help if the project needs more custom development to support payment terms, ERP sync, or approval logic. A higher platform fee can still make sense if the architecture reduces middleware, apps, or manual operational work. With cost grounded in implementation, checkout logic becomes the next constraint to evaluate.
Checkout Logic Decides If B2B Payment Terms Work
Shopify Plus doesn't ship a native way to check a customer's credit limit before checkout confirms the order. It ships Checkout Extensibility and Shopify Functions, which let a developer build that logic and inject it into checkout without touching Shopify's core code. That's a real capability, but it means the credit check, net-term enforcement, and invoice logic have to be built, tested, and maintained by your team or your agency.
BigCommerce takes a different path. Its checkout API has been open since before the Enterprise-to-Performance rename, so a team building custom payment logic isn't unlocking a separate tier to do it. The tradeoff is that BigCommerce's checkout UI is less flexible to restyle than Shopify's, so what you gain in logic access, you can lose in front-end control.
Neither platform hands you working B2B payment terms out of the box, and both require someone to build the decision layer that decides if an order clears, pauses for approval, or gets blocked before checkout confirms it.
Worth reading
If you're evaluating Shopify Plus specifically for Net 30, credit limits, and invoice logic, this guide on supporting Net 30 terms and credit limits at scale on Shopify covers what that build involves. Buyer payment behavior shapes B2B checkout as much as approval logic does, and this breakdown of ACH payments on Shopify Plus covers how buyers pay once terms are approved.
B2B Native Functionality: Roles, Approvals, and Contract Pricing
A procurement manager logging into either platform expects three things to work without a phone call: the contract price they negotiated, the approval chain their company requires, and a reorder flow that doesn't force them to rebuild the same 40-SKU cart every month.
Company accounts, custom price lists, and payment terms now exist as native B2B features on Plus, which makes Shopify much stronger for hybrid brands that sell DTC and B2B through the same ecosystem. The limitation shows up when the workflow gets more layered. A company account with three buyers, spending thresholds, manager approvals, and exception rules still needs a custom approval layer built on top of the native B2B setup.
BigCommerce B2B Edition starts with more role and approval logic already built into the platform. That gives complex B2B teams more structure out of the box, especially when multiple buyers, account managers, purchasing limits, and approval chains are part of the sales process. The tradeoff is setup depth. More native flexibility means more configuration before the portal feels clean for buyers and manageable for internal teams.
Worth reading
A side-by-side breakdown of what each platform ships natively is covered in this rundown of the top B2B eCommerce functionalities on Shopify and BigCommerce.
Contract pricing still needs careful implementation on both platforms. Native price lists help, but enterprise B2B pricing rarely stays simple. Customer-specific rates, SKU-level exceptions, volume breaks, contract terms, and ERP-driven updates all need to match what the buyer sees in their customer-specific catalogs and at checkout. Contract pricing functionality belongs in the platform decision from the start.
API Access and the Cost of Customization
Customization decides how quickly the platform can adapt when the business needs a new buyer flow, a different pricing rule, a custom checkout condition, or a front end that does more than the default theme allows.
Shopify Plus has gained serious ground here. The GraphQL Storefront API, checkout extensions, and headless-ready architecture let a development team build a custom front end while keeping Shopify's backend, checkout, and payments underneath it. The larger app marketplace also gives Shopify an advantage when a pre-built solution can solve the problem cleanly without turning every feature request into a custom development project. The Shopify Plus Development Enhancements rolled out in summer 2026 extended that flexibility further, especially around extensions and storefront customization.
That front-end flexibility shows up clearly in VAIO's Shopify Plus storefront redesign. Optimum7 rebuilt the product and category page structure, sticky header, and mobile navigation without changing backend logic. The performance lift came from rebuilding the buyer-facing experience around how customers moved through the site, with Shopify Plus running underneath the whole time as a stable commerce backend.
BigCommerce creates leverage in a different part of the build. Its API-first SaaS architecture gives developers more direct access to catalog, checkout, pricing, and integration logic, which helps when the business has complex product relationships, ERP-driven inventory, large SKU counts, or custom B2B workflows that don't fit neatly into a standard app. Fasteners Direct put that to work during a BigCommerce migration, building a two-way API integration with their INxSQL ERP to sync inventory, orders, and customer records in real time. For industrial and distributor catalogs, that openness reduces the number of platform walls Optimum7's BigCommerce Development Services team runs into building custom functionality.
Worth reading
Headless isn't the best choice for every BigCommerce catalog. See this guide on going headless with BigCommerce to check if it's a good fit for your store.
The tradeoff is ecosystem depth. Shopify solves more problems through apps and storefront extensions, which shortens the path when the business needs a clean pre-built solution. BigCommerce pushes more of that work into architecture and custom development, which gives the team more control but also more responsibility for the build.
The practical difference is cost, timeline, and ownership. Once the business has to move ERP data, inventory rules, and pricing logic onto the new platform, the same API depth that shaped customization also shapes migration risk.
ERP Integration and Migration Risk: What Breaks First
Migrating onto either platform is a logic transfer as much as a data transfer. The pricing, inventory, and order status rules that sync between your storefront and the system your operations team runs on have to survive the move, and the logic is what breaks first, at the ERP connection.
Shopify Plus migrations need middleware to keep a legacy ERP talking to the platform in real time, since Shopify's architecture wasn't built with native ERP sync as a starting assumption. This Shopify Plus migration and re-platforming guide covers what that middleware layer needs to handle. BigCommerce's more open API carries ERP-driven pricing and inventory logic across a migration with less custom middleware, which is why manufacturers with layered SKU and pricing structures build there instead.
Worth checking
If a legacy ERP sync is the thing keeping you up before a migration, NetSuite ERP integration is built for exactly this kind of real-time sync between the storefront and the ERP.
Wellness Partners ran into this directly when it outgrew 3dCart. An API-based migration moved products, customers, orders, and reviews to BigCommerce without the manual re-entry that introduces errors during a platform switch. The migration method mattered as much as the destination platform, and the numbers back that up.
The platform decision only works if the migration carries over the logic your current system already enforces. Pricing rules, inventory updates, customer records, approval paths, and order status flows all have to survive the move. Vendor demos and sales calls won't reveal a weak migration. The damage surfaces after launch, when a workflow your best customers have relied on for years suddenly stops working.
Worth reading
The failure point looks different depending on where you're migrating from. A legacy Oracle Commerce stack needs Shopify Plus development work to rebuild the B2B logic Oracle handled natively. This breakdown of what an eCommerce platform migration costs is worth checking before you get a vendor quote.
Shopify Plus vs BigCommerce Enterprise: Which Fits Your Business
Every difference we've discussed so far, pricing, checkout, B2B functionality, API depth, and migration risk, settles into the same question: which platform matches how your business operates. A storefront built around campaigns, fast merchandising, and app-driven growth needs a different foundation than one built around contract pricing, ERP-controlled inventory, approval chains, and repeat procurement. The table below turns all of that into a single answer.
| Business model | Better fit | Why |
|---|---|---|
| DTC-heavy brand with B2B growing alongside it | Shopify Plus | The larger app marketplace and Checkout Extensibility support marketing-led growth without commissioning a custom build for every feature |
| B2B distributor or manufacturer with ERP-driven pricing and inventory | BigCommerce Enterprise (Performance) | The more open API carries pricing and inventory logic across a migration with less custom middleware |
| Complex, layered approval and role hierarchies | BigCommerce Enterprise (Performance) | B2B Edition ships more approval and role logic natively instead of requiring a custom layer on top |
| Multi-brand operations that can run through separate expansion stores | Shopify Plus | Nine expansion stores ship with the base Plus contract, which works well when each brand or region can operate as a separate storefront |
| Product configurators or complex compatibility logic | Depends on catalog depth | Both platforms need custom development here; the deciding factor is which one, ERP logic or checkout logic, carries more of the complexity |
The right platform is the one that can keep up with the business model you are building toward. A distributor adding direct-to-consumer sales needs buyer experience flexibility it didn't need before. A DTC brand growing into wholesale needs contract pricing, account rules, payment terms, and repeat ordering to work without turning every B2B order into a service ticket. The best decision comes from the workflows that already drive revenue and the operational pressure the next stage of growth will create.
Optimum7 works with both Shopify Plus and BigCommerce Enterprise. We build and migrate the architecture that fits how your business operates, then handle the custom development each platform needs to support checkout logic, ERP connections, contract pricing, approval workflows, and buyer experience. If you're weighing this decision, contact us and we'll map your specific workflows against both platforms before you commit to either one.
Frequently Asked Questions
Which is better for my business: Shopify Plus or BigCommerce Enterprise?
It depends on what breaks if the platform doesn't fit your operation. A B2B or industrial business running ERP-driven pricing and inventory does better on BigCommerce Enterprise (Performance), since its architecture was built around exactly that kind of catalog complexity. A DTC-first brand with growing B2B does better on Shopify Plus, since the app ecosystem and Checkout Extensibility support marketing-led growth without a custom build for every feature.
Which platform handles B2B payment terms better, Shopify Plus or BigCommerce Enterprise?
Both require custom development to fully enforce net terms and credit limits at checkout. Shopify Plus builds that logic through Checkout Extensibility and Shopify Functions. BigCommerce's checkout API has been open longer, so the same logic doesn't require unlocking a separate tier to implement.
Does BigCommerce Enterprise support large B2B catalogs better than Shopify Plus?
For very large, complex B2B catalogs built on ERP-driven pricing, large SKU counts, and custom product relationships, BigCommerce Enterprise (Performance) is the stronger fit, since its architecture gives more direct access to that logic. Shopify Plus supports complex catalogs too, but it needs more custom structure around metafields, apps, checkout logic, or middleware when the catalog runs on operational rules instead of straightforward merchandising.
Does migrating to BigCommerce Enterprise or Shopify Plus put my ERP integration at risk?
Yes, if the migration treats it as a data move instead of a logic transfer, and the real damage shows up when pricing rules, inventory sync, or order status stop firing correctly during the first week live. Testing the ERP connection under real order volume before cutover matters more than which platform you land on, and an API-based migration instead of manual re-entry is what kept that risk contained for Wellness Partners.
About the author: Duran Inci is the CEO and Co-Founder of Optimum7, an eCommerce development and digital marketing agency specializing in platform migrations, custom functionality, and performance optimization for high-growth brands.
