Quick summary
Shopify Plus gives you a strong foundation. The apps you add on top determine whether your wholesale operation runs smoothly or not. This guide covers 8 Shopify Plus apps across four categories, all drawn from SparkLayer's partner and integration ecosystem, and every one of them works alongside SparkLayer.
- Best for B2B wholesale: SparkLayer
- Best for ERP and operations: Brightpearl, Cin7 Core, Unleashed, Katana
- Best for accounting and finance: Xero, QuickBooks Online
- Best for middleware and iPaaS: Patchworks
For more on scaling wholesale on Shopify Plus, explore our best practice guides.
Beyond the standard Shopify Plus stack
Shopify Plus gives you the storefront, checkout customisations, and higher API limits, but running a B2B operation often requires more. You may need tools for wholesale ordering, ERP connections, inventory across warehouses, accounting, and other parts of the operation.
These eight tools come from SparkLayer's integration partners and cover the key areas that sit around your Shopify Plus store. Together, they give you different ways to build out the B2B stack without relying on Shopify Plus alone to handle every operational requirement.
8 best Shopify Plus apps compared
| # | App | Best for | Starting price | Rating |
|---|---|---|---|---|
| 1 | SparkLayer | Brands adding a complete B2B ordering layer without rebuilding their store | Free, paid from $49/month | 4.9/5 on the Shopify App Store |
| 2 | Brightpearl | Multi-channel brands needing real-time inventory and order management | Custom | 4.6/5 on the Shopify App Store |
| 3 | Cin7 Core | Brands managing inventory, purchasing, and B2B orders in one system | From $349/month | 4.3/5 on the Shopify App Store |
| 4 | Unleashed | Manufacturers and distributors needing real-time inventory and cost tracking | From £269/month | See the Shopify App Store listing |
| 5 | Katana | Small manufacturers managing production, materials, and sales orders | From $299/month | 4.2/5 on the Shopify App Store |
| 6 | Xero | Brands syncing B2B invoices and payments with their accounting system | From $29/month | 4.4/5 on GetApp |
| 7 | QuickBooks Online | US-based brands managing their accounts in QuickBooks | From $38/month | 4.6/5 on the Shopify App Store |
| 8 | Patchworks | Brands connecting Shopify Plus with systems outside SparkLayer's native integrations | Custom | See Patchworks |
Prices and ratings as listed in October 2026.
Best for B2B wholesale
1. SparkLayer
SparkLayer adds a complete B2B wholesale operation on top of the Shopify Plus store you already have, without requiring a separate storefront or rebuild. Wholesale buyers log in to a branded portal with their own pricing, catalogue, and a checkout built for trade ordering.
This makes SparkLayer different from the other tools on this list. It is not an ERP, an accounting system, or a connector. It is the layer that sits between your buyers and your existing store, handling everything a wholesale operation needs at the front end. Brands like Paleo Ridge were live within a day.
Key features
- Account-specific pricing: trade buyers log in and see their own prices automatically. The Discount Engine handles customer-specific rates, volume breaks, and promotional pricing without manual updates.
- Bulk ordering: buyers search and add by SKU, reorder from history in one click, upload a CSV for large orders, or save shopping lists for recurring purchases.
- Sales Agent Ordering: sales reps log in as any buyer account with Sales Agent Ordering, see live account pricing, and place orders on their behalf from any device.
- Quoting Engine: trade buyers request a quote from the cart. The Quoting Engine handles negotiation, approval, and conversion to order in one place.
- AI Intelligent Cart: purchase orders sent by email, PDF, or spreadsheet are read automatically by the AI Intelligent Cart and converted into a live cart without manual entry.
- ERP and accounting sync: orders sync natively to Brightpearl, Cin7 Core, Linnworks, Unleashed, Katana, Xero, and QuickBooks Online without middleware.
Pricing
Paid plans include a 14-day free trial of all SparkLayer features. See full pricing
Rating: 4.9/5 on the Shopify App Store (387 reviews)
Best for ERP and operations
2. Brightpearl by Sage
Brightpearl handles orders, inventory, accounting, and warehouse management in one platform. It is built for merchants who sell across multiple channels and cannot afford their Shopify orders and warehouse stock to be out of sync. B2B orders placed through SparkLayer flow directly into Brightpearl for fulfilment, with stock levels and pricing updated in both directions.
Key features
- Order automation: route, fulfil, and track orders across channels automatically, including B2B orders from SparkLayer.
- Inventory management: track stock across multiple warehouses in real time with live sync to Shopify Plus.
- Built-in accounting: accounts payable, receivable, and tax calculations in one place without a separate accounting tool.
- Warehouse management: pick, pack, and ship with barcode scanning and full despatch tracking.
Pricing: Custom quotes only. The Shopify app is free to install, but you'll need to contact their sales team for costs.
Rating: 4.6/5 on the Shopify App Store from 57 reviews.
3. Cin7 Core
Cin7 Core is an inventory and order management platform built for product-based businesses that manufacture or buy in bulk. It covers purchasing, production, warehousing, and sales order management in one system.
Trade orders placed through SparkLayer go straight into Cin7 Core for picking and despatch, with inventory and pricing syncing in both directions.
Key features
- Inventory management: track stock across multiple locations with real-time visibility into what is available and where.
- Purchase orders: manage supplier purchases, landed costs, and stock receipts from one dashboard.
- Production management: build bills of materials and manage assembly and kitting workflows.
- Multi-channel order management: consolidate B2B, DTC, and marketplace orders from one system.
Pricing: From $349/month.
Rating: 4.3/5 on the Shopify App Store from 62 reviews.
4. Unleashed
Unleashed is an inventory and operations platform built for manufacturers, wholesalers, and distributors that need real-time control over stock, purchasing, and production across multiple locations. The native SparkLayer connector syncs wholesale orders and pricing automatically, so B2B orders placed on Shopify Plus go straight into Unleashed without manual entry.
Key features
- Real-time inventory: track stock across multiple warehouses and locations with live updates.
- Purchasing: manage supplier purchase orders, landed costs, and stock receipts.
- Cost of goods tracking: track variable costs like freight and customs duties for accurate margin reporting.
- Batch and serial tracking: trace products through the supply chain, useful for regulated industries like food and beverage.
Pricing: From £269/month (Core plan).
Rating: See reviews on the Shopify App Store.
5. Katana
Katana is a manufacturing and inventory platform designed for small to mid-sized brands that make their own products and sell direct and wholesale. It manages raw materials, production orders, and sales orders from a single dashboard.
When a wholesale order is placed through SparkLayer on Shopify Plus, Katana picks it up automatically, checks materials availability, and schedules production without any manual handover.
Key features
- Production scheduling: visual drag-and-drop production planner with real-time materials availability.
- Bill of materials: build multi-level BOMs and track material costs through every production run.
- Live inventory: see raw materials and finished goods across all locations in real time.
- Sales order management: manage B2B and DTC orders from one screen with fulfilment status tracking.
Pricing: Free plan ($0, up to 30 SKUs). Paid plans start at $299/month.
Rating: 4.2/5 on the Shopify App Store from 134 reviews.
Best for accounting and finance
6. Xero
Xero is a cloud accounting platform used by more than four million businesses globally. SparkLayer's native Xero integration syncs B2B invoices, payments, and account balances automatically between Shopify Plus and Xero, removing the need for manual reconciliation after every wholesale order. For UK and international brands especially, Xero is the accounting platform most accountants and bookkeepers already work in.
Key features
- Invoice sync: B2B invoices generated by SparkLayer orders sync to Xero automatically.
- Bank reconciliation: match payments to invoices with Xero's reconciliation tools.
- Multi-currency: manage invoices and payments across multiple currencies from one account.
- Tax reporting: manage VAT, GST, and sales tax from Xero with Shopify data already synced.
Pricing: From $29/month (Starter plan).
Rating: 4.4/5 on GetApp from 3,000+ reviews.
7. QuickBooks Online
QuickBooks Online is the dominant accounting platform for US-based businesses. SparkLayer's native QuickBooks connector syncs B2B invoices, payments, and account balances automatically, so wholesale orders placed on Shopify Plus flow through to QuickBooks without manual entry. For US-based Shopify Plus brands, QuickBooks is often already in use across the business.
Key features
- Invoice sync: B2B invoices generated by SparkLayer orders sync to QuickBooks automatically.
- Tax management: US sales tax calculation and reporting built into the platform.
- Profit and loss reporting: track wholesale revenue and margins alongside DTC in one view.
- Payroll: manage employee payroll directly within QuickBooks Online.
Pricing: From $38/month (Simple Start).
Rating: 4.6/5 on the Shopify App Store from 3,330 reviews.
Best for middleware and iPaaS
8. Patchworks
Patchworks is an iPaaS platform that connects Shopify Plus and SparkLayer to any system not covered by SparkLayer's native connectors. For brands running CRMs, legacy ERPs, 3PLs, or warehouse systems that fall outside the native integration list, Patchworks provides a no-code layer that syncs orders, customers, pricing, and inventory across all connected systems automatically.
Key features
- No-code integration builder: build connections between Shopify Plus, SparkLayer, and any system with an API without writing code.
- Pre-built connectors: access hundreds of pre-built connectors for common platforms across ERP, CRM, logistics, and accounting.
- Real-time data sync: keep orders, inventory, customers, and pricing in sync across every connected system.
- Error monitoring: automated alerts when a sync fails, so issues are caught before they affect fulfilment.
Pricing: Custom quotes only. Contact Patchworks for pricing.
How to choose the right apps for your Shopify Plus store
With 16,000+ apps on the Shopify App Store, the risk is not finding apps. It is installing too many of the wrong ones. Here is how to build a focused, effective app stack for a B2B wholesale operation on Shopify Plus.
Start with the workflow, not the app
Map your wholesale order flow before you install anything. Where do orders come from? How do they get into your ERP? How do invoices get to buyers? How does your team manage accounts? Each gap in that workflow is a category to address. Each category needs at most one app.
Prioritise native integrations over middleware
Every middleware layer in your stack is a potential failure point. SparkLayer connects natively to Brightpearl, Cin7 Core, Unleashed, Katana, Xero, and QuickBooks Online. For systems not on that list, Patchworks handles the connection. Native integrations sync in real time and require less maintenance than custom-built connectors.
Match the app to your scale
Brightpearl is built for significant order volumes and multi-channel complexity. Katana is built for manufacturers at earlier stages of scale. Cin7 Core sits in the middle. Choosing an enterprise ERP at 30 wholesale accounts adds cost and complexity without proportionate benefit. Choose for where you are going in the next two to three years, not just where you are today.
Test before you commit
Where an app offers a trial, run a full cycle: place an order through SparkLayer, check it arrives in the ERP, confirm the invoice lands in Xero or QuickBooks, and verify stock levels update. Do this before committing to a paid plan. Most issues surface in that first test cycle, not after months of operation.
Watch the total cost of ownership
The app fee is not the full cost. Implementation, onboarding, and ongoing maintenance add up. Apps that require agency implementation (Brightpearl) carry a higher total cost than those with guided self-service onboarding (SparkLayer, Katana, Xero). Factor in the full cost before making a decision.
Ready to add B2B wholesale to your Shopify Plus store?
SparkLayer is free to start and most brands are live within a day. It works on all Shopify plans including Basic, Grow, and Advanced, with no Plus upgrade required for SparkLayer itself.
Start free or book a demo to see SparkLayer running on your store.
Free plan available. Paid plans from $49/month. 14-day free trial on all paid plans.
