The Best B2B Ecommerce Tech Stack for Shopify Plus (2026 Guide)
A B2B ecommerce tech stack is the collection of software systems that work together to run a wholesale commerce operation: the storefront, the back-office systems that feed it data, the marketing tools that drive buyers to it, and the operational tools that fulfill orders and manage customer relationships.
For manufacturers, distributors, and wholesalers running on Shopify Plus, the stack question is not which single platform to choose. Shopify Plus is already the commerce layer. The question is which systems to connect to it, at what stage of growth, and in what order.
This guide breaks the B2B ecommerce tech stack into functional layers, explains what Shopify Plus handles natively, identifies where third-party tools are needed, and recommends the tools Uncap has seen perform best across 380+ B2B commerce implementations since 2013.
A B2B ecommerce tech stack is the set of technology systems that enables a wholesale or B2B operation to sell, manage, and fulfill orders online. It typically spans ten functional layers: the commerce platform, ERP, CRM, PIM, order management, warehouse management, marketing automation, search and discovery, analytics, and tax and compliance.
The difference between a B2B tech stack and a B2C stack is primarily in the back-office layer. B2B operations require customer-specific pricing, complex payment terms, multi-contact account management, ERP integration for inventory and fulfillment, and quote-to-cash workflows that do not exist in consumer commerce. The tools that serve these needs are different, and the integration requirements are more demanding.
Shopify Plus is the commerce foundation that every other layer connects to. Before evaluating third-party tools, it is worth understanding what Shopify Plus handles natively for B2B, because significant capabilities exist before you add a single app.
Company accounts and multi-user management. Shopify Plus supports company profiles with multiple buyer contacts, each with defined roles and permissions. A purchasing manager places orders; a finance contact manages payment terms and invoices. This is the account management layer that wholesale buyers expect.
Customer-specific price lists. Price lists in Shopify Plus assign different pricing to different company accounts, supporting percentage-based discounts, fixed price overrides, and volume-based tiers. No app required for standard wholesale pricing logic.
Net payment terms. Shopify Plus enforces net payment terms (Net 15, Net 30, Net 60, Net 90) natively within checkout. Buyers on net terms complete orders without entering payment details at checkout.
Gated catalogs. Product visibility is configurable at the company level. Distributors see only their approved product range; trade accounts see pricing without retail comparisons.
Purchase order capture. Buyers enter their PO numbers at checkout. PO numbers flow through to order records, ERP sync, and all order notifications.
Shopify Flow. A workflow automation tool built into Shopify Plus that handles rule-based automation: customer tagging, inventory alerts, fraud prevention workflows, order routing, and campaign-triggered pricing rules. Properly implemented, Shopify Flow replaces manual processes across your operations team without requiring developer work.
Shopify Functions. WebAssembly-based framework for customizing checkout logic: custom discount rules, shipping logic, payment method filtering, and order validation. This replaced Shopify Scripts (end-of-life June 2026) and is the correct architecture for all checkout customization going forward.
Shopify Markets. Multi-currency, multi-language, and multi-region commerce management from a single Shopify Plus backend. Relevant for B2B operations with international buyers or distribution partners in multiple markets.
Start with what Shopify Plus gives you before adding tools. Many B2B operations layer apps on top of capabilities that already exist natively on the platform, paying for complexity they do not need.
The ERP is the system of record for inventory, financials, order fulfillment, and customer accounts. For most B2B manufacturers and distributors, the ERP is not optional. The question is how it connects to Shopify Plus.
A properly built ERP-Shopify integration runs bidirectionally in real time: orders placed in Shopify appear immediately in the ERP's fulfillment queue; inventory levels, pricing, and customer account data sync from the ERP to Shopify continuously.
NetSuite (Oracle NetSuite). The most common ERP for mid-market B2B operations on Shopify Plus. Oracle provides its own native Shopify connector; custom API integrations are available for operations with non-standard data models or complex pricing logic.
Microsoft Dynamics 365 Business Central / Finance. Widely used across manufacturing and distribution. API-based integration with Shopify Plus handles order sync, inventory, and customer account management.
SAP S/4HANA / SAP Business One. Enterprise-grade for larger operations. Integration complexity is higher and typically requires a custom middleware layer or a purpose-built SAP-Shopify connector.
Epicor Kinetic. Common in manufacturing. Integration covers order management, inventory, and pricing with good support for complex product catalog structures.
Sage Intacct / Sage 300. Mid-market option with strong financial management capabilities and Shopify Plus integration via API connectors.
QuickBooks Online. Appropriate for earlier-stage B2B operations. Integration with Shopify Plus handles order sync, accounting, and basic inventory. Note: QuickBooks Desktop 2023 support ended May 2026. QBO is the current recommended path.
Uncap builds ERP integrations to Shopify Plus as part of every B2B commerce implementation. The Uncap Connect service handles NetSuite, Dynamics, SAP, and Epicor with real-time, bidirectional sync architecture.
B2B commerce runs on relationships. Your CRM is where sales reps manage accounts, track opportunities, log interactions, and coordinate with operations. Integrating your CRM with Shopify Plus gives your sales team visibility into buyer portal activity, order history, and account status without leaving their primary tool.
Salesforce Sales Cloud. The most common enterprise CRM in B2B commerce. Integration with Shopify Plus syncs company accounts, order history, and buyer activity. Sales reps see what accounts have ordered and when.
HubSpot CRM. Widely used at mid-market scale. Native integration with Shopify available; provides order history in the CRM and supports sales pipeline management alongside buyer portal data.
Microsoft Dynamics 365 Sales. Strong fit for operations already running on Microsoft Dynamics for ERP; native integration keeps CRM and ERP in the same vendor ecosystem.
Pipedrive. Simpler CRM for smaller B2B sales teams. Shopify integrations available via middleware platforms.
For B2B operations where wholesale sales are rep-led, the CRM-Shopify integration closes the gap between digital orders and relationship management. Sales reps should never have to ask their operations team what a buyer's last order was.
A PIM system manages the single source of truth for product data: attributes, descriptions, images, technical specifications, certifications, and digital assets. For B2B manufacturers with complex product catalogs (hundreds or thousands of SKUs with variant structures, compliance documentation, and channel-specific content), a PIM is essential for maintaining data quality across Shopify Plus and other sales channels.
Akeneo. The leading PIM for mid-market to enterprise B2B operations. Feeds clean, complete product data to Shopify Plus and other channels from a single source. Strong support for complex attribute structures and multi-channel publishing.
Salsify. PIM combined with commerce experience management. Strong for brands with channel-specific content requirements and digital asset management needs.
Plytix. Mid-market PIM with a focus on multi-channel product content. Good fit for growing B2B operations before they need enterprise-grade PIM capability.
inRiver. Configurable PIM for operations with complex product relationships and technical content requirements.
Not every B2B operation needs a standalone PIM. Shopify Plus's native product management handles most catalog structures at mid-market scale. Evaluate a dedicated PIM when you are managing 5,000 or more active SKUs with complex variant structures, channel-specific content requirements, or compliance documentation workflows.
B2B buyers search differently from B2C buyers. They search by SKU, by part number, by specification, by compatibility, and by supplier reference. A B2B buyer managing 50 accounts does not browse; they search for exactly what they need to order.
Algolia. The most widely deployed search solution for Shopify Plus B2B stores. Faceted navigation, typo-tolerant search, synonym handling, and custom merchandising rules let buyers find the right SKU in a catalog of thousands without friction. Algolia integrates natively with Shopify's storefront and product data.
Searchie / Loop. Shopify-native search tools with simpler setup than Algolia. Appropriate for smaller catalogs or operations where Algolia's cost does not justify the complexity.
For B2B operations with large catalogs, complex product relationships, or buyers who search by technical specifications, Algolia is the correct choice. The search experience is often the biggest driver of buyer self-service adoption in wholesale portals.
B2B marketing automation drives buyer engagement, repeat ordering, and account development. The tools in this layer handle email, SMS, and customer journey automation.
Klaviyo. The most widely used marketing automation platform in the Shopify ecosystem. Native Shopify integration enables customer segmentation based on order behavior, purchase frequency, and account status. B2B-relevant automations include reorder reminders, account activation sequences, and price list update notifications. Supports both email and SMS.
Gorgias. The leading customer service platform for Shopify stores. Live chat, email, social media, and SMS support from a single inbox. B2B-relevant features include order lookup from the service interface, customer account visibility, and automated responses to common B2B queries (order status, invoice requests, delivery confirmation). Gorgias integrates natively with Shopify and surfaces order data directly in the support interface.
Postscript. SMS marketing platform with strong Shopify integration. Complement to Klaviyo for operations where SMS is a significant buyer communication channel.
Note: Google Optimize was discontinued by Google in September 2023. It should not be part of any recommended tech stack. The current tools for analytics and testing on Shopify Plus are:
Google Analytics 4 (GA4). The current Google Analytics platform, required since Universal Analytics was sunset in July 2023. GA4 provides event-based tracking, conversion funnel analysis, and audience segmentation. The native Shopify-GA4 connection handles standard ecommerce tracking.
Hotjar / Microsoft Clarity. Session recording, heatmaps, and user behavior analysis. Clarity is free; Hotjar is paid. Both provide qualitative insight into how buyers navigate the portal and where friction occurs in the buying journey.
Shopify Analytics. Shopify Plus's native analytics dashboard provides order metrics, customer segmentation, product performance, and conversion reporting directly in the admin. For most B2B operations, Shopify Analytics combined with GA4 covers the reporting needs without additional tools.
Littledata / Elevar. Server-side tracking solutions for Shopify that improve GA4 data accuracy by capturing events that browser-based tracking misses. Relevant for operations where marketing attribution accuracy is business-critical.
A/B Testing on Shopify Plus. Native A/B testing for storefront elements is available through Shopify's theme editor for simpler tests. For structured experimentation programs, tools like Convert Experiences or VWO integrate with Shopify Plus without requiring the deprecated Google Optimize.
ShipStation. Widely used shipping management platform with native Shopify Plus integration and connections to all major carriers (UPS, FedEx, USPS, DHL). Automates carrier selection, label generation, and tracking updates based on order and customer rules.
ShipperHQ. Advanced shipping rate configuration for Shopify checkout. Dimensional packaging, LTL freight rates, zone-based shipping rules, and carrier negotiated rates. Critical for B2B operations where shipping complexity (heavy freight, hazmat, regulatory restrictions) makes standard checkout rate displays inaccurate.
ShipBob. 3PL fulfillment network with Shopify Plus integration. Relevant for B2B operations outsourcing fulfillment rather than managing warehouse operations directly.
EasyPost. API-based shipping carrier integration for operations building custom fulfillment workflows. Lower-level than ShipStation but more flexible for bespoke logistics requirements.
Avalara. The leading automated tax compliance platform for US and international commerce. Handles nexus determination, tax rate calculation, multi-jurisdiction filing, and exemption certificate management. For B2B operations, exemption certificate management is particularly important: wholesale buyers often have tax-exempt status that must be validated and applied correctly at checkout.
TaxJar. Alternative to Avalara, strong for US-focused operations. AutoFile feature handles state filing automatically. Good fit for mid-market B2B operations before Avalara's enterprise pricing is justified.
Shopify Plus includes basic sales tax calculation natively. For multi-state or international B2B operations, automated tax compliance tools eliminate manual filing risk and ensure exemption certificates are handled correctly.
This layer covers the tools that handle the B2B-specific workflows that standard commerce platforms and apps do not address natively: quote management, configure-price-quote (CPQ) workflows, buyer portals, and rep-assisted selling.
Configure-price-quote tools manage the pre-order workflow for B2B operations where buyers request quotes before committing to purchases, where pricing requires custom negotiation, or where complex product configurations must be validated before order submission.
Uncap Dealroom. Quote-to-cash acceleration built natively on Shopify Plus. Buyers and sales teams collaborate on quotes in a digital workspace. Quotes convert to Shopify draft orders with one action. Negotiated pricing applies directly to the order. Designed for B2B manufacturers and distributors where rep-assisted ordering is a primary revenue channel.
Quoter. Standalone CPQ platform with Shopify integration. Appropriate for operations with complex product configuration requirements that exceed what Shopify's native product model handles.
Uncap Self-Serve Portal. A B2B buyer portal embedded inside the Shopify storefront, built on Shopify's native B2B infrastructure. Buyers access their order history, pricing, company account information, and reorder tools without contacting sales or support. Fed by live ERP data through the Shopify-ERP integration.
Uncap Advanced Quote Management. Takes the quote from creation to confirmed order without manual coordination between sales reps and operations. Replaces the email-back-and-forth that makes quote-to-cash cycles longer than they need to be.
Uncap Smart Agents. AI agents embedded in the Shopify Plus operation that surface reorder recommendations, upsell opportunities, and margin alerts automatically. Relevant for B2B operations scaling beyond what a sales team can actively manage across all accounts.
This layer is where the most meaningful efficiency gains exist for B2B manufacturers and distributors. The standard Shopify Plus tech stack handles the storefront and back-office integration. The B2B-specific layer handles the quote and order workflows that sit between them.
Not every layer is required from day one. Here is how the stack typically builds by operational maturity.
Essential from day one: Shopify Plus (native B2B features: company accounts, price lists, net terms), ERP integration (real-time order and inventory sync), Klaviyo (buyer communication), Gorgias (customer support), ShipStation or ShipperHQ (fulfillment), Avalara or TaxJar (tax compliance), GA4 (analytics).
Add once the portal is stable: Algolia (if catalog exceeds 1,000 SKUs), A2X or QuickBooks integration (accounting), CRM integration (if rep-assisted selling is significant).
Add at scale: PIM (Akeneo or Salsify, at 5,000+ SKUs or multi-channel content requirements), CPQ tools (when quote volume exceeds what reps manage manually), buyer self-service portal (when inbound support volume is high), advanced analytics (Littledata or Elevar for attribution accuracy).
Enterprise additions: Full CRM integration (Salesforce or Dynamics), EDI capabilities for large retail or distribution accounts, headless storefront (Hydrogen) if performance is a competitive differentiator, agentic commerce tools (AI agents for upsell, reorder, and account management at scale).
Uncap builds and maintains B2B commerce operations on Shopify Plus for manufacturers, distributors, and wholesalers. Our ERP integration service connects Shopify Plus to NetSuite, SAP, Dynamics, and Epicor with real-time bidirectional sync. Our B2B app suite covers the quote-to-cash layer that standard apps do not address: Dealroom for digital quoting, Self-Serve Portal for buyer account management, Advanced Quote Management for rep-to-confirmed-order workflows, and Smart Agents for AI-driven account recommendations.
We have been building wholesale and distribution commerce on Shopify since 2013 as a Platinum Shopify Partner. The stack recommendations in this guide reflect what we have seen perform across 380+ live B2B operations, not theoretical feature comparisons.
Book a Strategy Session to discuss the right stack architecture for your specific operation.
What is a B2B ecommerce tech stack?
A B2B ecommerce tech stack is the set of software systems that collectively enable a wholesale or B2B operation to sell, manage, and fulfill orders online. It typically includes a commerce platform (such as Shopify Plus), an ERP for inventory and financials, a CRM for account management, marketing automation, search tools, shipping and fulfillment software, tax compliance tools, and B2B-specific applications for quote management and buyer portals. The specific tools in the stack depend on the operation's size, complexity, and growth stage.
What does Shopify Plus include natively for B2B?
Shopify Plus includes native B2B features at no additional cost: company accounts with multi-user management and role-based permissions, customer-specific price lists, net payment terms enforced at checkout, gated product catalogs, purchase order capture, Shopify Flow for workflow automation, and Shopify Functions for custom checkout logic. These native capabilities replace many third-party apps that earlier Shopify versions required to serve B2B buyers.
What ERP systems integrate with Shopify Plus?
Shopify Plus integrates with all major ERP platforms including NetSuite (Oracle), SAP S/4HANA and Business One, Microsoft Dynamics 365 Business Central and Finance, Epicor Kinetic, Sage Intacct, Sage 300, and QuickBooks Online. Integration can be built through official connectors, integration middleware platforms, or custom API development depending on the ERP's data model complexity.
What is the difference between B2B and B2C ecommerce tech stacks?
B2B ecommerce tech stacks require additional layers that B2C stacks do not: ERP integration for inventory and fulfillment routing, customer-specific pricing and payment terms, quote and CPQ tools for pre-order workflows, account hierarchy management for multi-contact companies, and compliance tools for tax exemption certificates. The storefront technology (Shopify Plus) is the same; the back-office and workflow layers are significantly more complex.
What tools should a B2B ecommerce operation use for marketing automation?
Klaviyo is the most widely used marketing automation platform in the Shopify ecosystem for both B2B and B2C operations. It provides email and SMS automation, customer segmentation based on order behavior and account status, and native Shopify integration. For B2B specifically, relevant Klaviyo automations include reorder reminders, price list update notifications, new account activation sequences, and win-back campaigns for dormant wholesale accounts.
How important is a PIM for B2B ecommerce?
A PIM is essential for B2B operations with complex product catalogs: 5,000 or more active SKUs, products with many technical attributes or compliance documentation, or operations publishing product data across multiple sales channels. Akeneo and Salsify are the leading PIM platforms for Shopify Plus integrations. For operations under this threshold, Shopify Plus's native product management typically handles catalog complexity adequately without a dedicated PIM.
