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Accounting
Sync customers, vendors, journal entries, POs, invoices, and credit memos automatically, in both directions.
QuickBooks Online
QuickBooks Online

The most-used Wherefour integration. Keep your books accurate without ever leaving Wherefour, every transaction syncs automatically.

  • ✓ Sync POs, invoices, and credit memos to QBO
  • ✓ 2-way customer and vendor record sync
  • ✓ Journal entries created on every inventory movement
  • ✓ Works with QBO Plus, and Advanced
QuickBooks Desktop
QuickBooks Desktop

Still running QB Desktop? No migration required. Wherefour syncs directly with Pro, Premier, and Enterprise editions.

  • ✓ Sync POs, invoices, and credit memos
  • ✓ 2-way Customer and vendor record sync
  • ✓ Journal entries for every transaction
Xero
Xero

For manufacturers running Xero as their accounting backbone. All purchasing, sales, and inventory transactions flow through automatically.

  • ✓ 2-way Customer and vendor record sync
  • ✓ Journal entries on every movement
  • ✓ POs, invoices, and credit memos posted to Xero
Sage Intacct
Sage Intacct

Enterprise-grade accounting sync for mid-market manufacturers running Sage Intacct as their financial system of record.

  • ✓ 2-way customer and vendor sync
  • ✓ Automatic journal entries
  • ✓ PO, PO Receiver, Invoice and Credit Memo posting to Sage Intacct
  • ✓ PO import from Sage Intacct
Microsoft Dynamics 365
Microsoft Dynamics 365

Connect Wherefour to Microsoft Dynamics 365 for manufacturers who run Microsoft's ecosystem across their finance and operations.

  • ✓ 2-way Customer and vendor record management
  • ✓ Journal entries on transactions
  • ✓ POs, and invoices posting to Dynamics
Epicor
Epicor

For manufacturers with Epicor as their financial backbone. Wherefour handles production and traceability while Epicor manages the books.

  • ✓ Journal entries on inventory movements
  • ✓ 2-way Customer and vendor record sync
  • ✓ PO and invoice posting to Epicor
eCommerce & Fulfillment
Orders import automatically, inventory stays in sync, and pick-and-ship happens without anyone touching a spreadsheet.
Shopify
Shopify

Your Shopify store and your production floor, finally talking to each other. New orders flow into Wherefour automatically — no copy-paste, no lag.

  • ✓ Automatically import new customers and orders
  • ✓ Process fulfillment and trigger pick-and-ship
  • ✓ Inventory levels stay in sync across both systems
Shopify Plus
Shopify Plus

Everything in the standard Shopify integration, scaled for high-volume merchants and brands on Shopify Plus.

  • ✓ High-volume order import and fulfillment
  • ✓ Supports multi-location inventory
  • ✓ Automated pick-and-ship workflows
Amazon FBA
Amazon FBA

Fulfillment by Amazon orders import automatically into Wherefour while your FBA inventory levels stay current on both sides.

  • ✓ Auto-import FBA orders for pick and ship
  • ✓ Real-time FBA inventory level monitoring
  • ✓ Supports multiple marketplaces
EDI & Shipping
Automate retailer POs, acknowledgements, ASNs, and shipping labels, the paperwork that slows most operations down.
SPS Commerce
SPS Commerce

For manufacturers selling to major retailers with EDI requirements. SPS Commerce handles the translation; Wherefour handles the fulfillment.

  • ✓ Automatic import of retailer POs
  • ✓ Auto-create invoices and ASNs on shipment
  • ✓ Supports all major retailer EDI requirements
ShipStation
ShipStation

Print shipping labels, process fulfillment, and keep order status current — ShipStation and Wherefour stay in lock-step on every outbound shipment.

  • ✓ Auto-import new orders for fulfillment
  • ✓ Generate and print shipping labels in Wherefour
  • ✓ Fulfillment status syncs back to originating channel
Industry-Specific
Compliance integrations built for cannabis operators, seed-to-sale reporting and wholesale ordering, fully connected.
LeafLink
LeafLink

The wholesale cannabis marketplace, connected to your Wherefour production and inventory. New orders from retailers import without manual entry.

  • ✓ Automatically import new LeafLink customers
  • ✓ New wholesale orders pull into Wherefour
Metrc
Metrc

Seed-to-sale compliance reporting for cannabis manufacturers, fully automated. Every package movement in Wherefour posts to Metrc — no duplicate entry.

  • ✓ Auto-import packages for inventory and lab test results
  • ✓ New packages from production and fulfillment post to Metrc automatically
  • ✓ Delivery manifests generated on shipment
  • ✓ Metrc adjustments sync when inventory is moved or adjusted
  • ✓ Supports all stages of cultivation, including growth phase changes and harvests
Connect Everything Else

5,000+ More Apps
via Zapier

If it's not in the native list, it's almost certainly in Zapier. Build automated workflows between Wherefour and any tool in your stack. No code, no IT ticket, no waiting.

  • ✓ Connect Wherefour to HubSpot, Salesforce, Slack, and more
  • ✓ Trigger workflows on inventory events, new orders, or production completions
  • ✓ No programming knowledge required, visual workflow builder
  • ✓ Runs in the background, 24/7
Popular Zapier connections
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App
App
App
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+
…and 4,989 more apps
REST API

Build Exactly
What You Need

Wherefour's REST API gives your team full programmatic access to inventory, production, traceability, orders, and more. Build custom integrations, dashboards, or automation that fits your exact workflow.

Authenticated REST endpoints — read and write access to all core data
Full API documentation with code examples in multiple languages
Webhook support for real-time event triggers on inventory, orders, and production
GET /api/v1/inventory/lots
// Fetch all active inventory lots with full lot-code detail

const response = await fetch(
  'https://api.wherefour.com/v1/inventory/lots',
  {
    method: 'GET',
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    params: { status: 'active', limit: 50 }
  }
);

// Response → lot codes, quantities, locations, expiry dates
const { lots, total } = await response.json();

// → { lot_code: "OF-2025-0341", qty: 480, location: "Warehouse A",
// expiry: "2026-03-15", status: "active" }
 

"Since implementing Wherefour, we've seen a sales increase of 15–20% and a reduction of inventory on hand of 20–25%. The integrations with QuickBooks and our eCommerce platforms meant we didn't have to rip anything out, we just connected it all."

Derek H.
David P. CEO
Bizzy Cold Brew

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