Multi-warehouse inventory accounting for QuickBooks Online
FLC Multiple Warehouse extends QuickBooks Online with true multi-location stock tracking, FIFO cost layers, landed-cost absorption, and platform-grade COGS journal entries — so your inventory ledger and your books always agree.
Connect your QuickBooks Online account in under a minute. No credit card required.
How the QuickBooks Online integration works
A direct OAuth 2.0 connection — your data stays between FLC Multiple Warehouse and Intuit. No third-party brokers, no exports, no manual journal entries.
Click "Connect to QuickBooks Online"
Authorize FLC Multiple Warehouse via Intuit's standard OAuth flow. We never see your QuickBooks Online password — only the encrypted access token, which we store with Fernet encryption at rest.
We pull your chart, items, and history
Items, vendors, customers, and recent bills come across in seconds. We map them to local SKUs and warehouses so every transaction has a clear lineage back to the QuickBooks Online record it came from.
Sales and COGS post automatically
As you import platform sales (Amazon, Shopify, Walmart) and record warehouse activity, FLC Multiple Warehouse posts COGS journal entries and inventory adjustments straight to QuickBooks Online — with full FIFO traceability and an audit trail.
What data flows where
We use the minimum scope required and keep every entity scoped to the customer who authorized us. Transparent and auditable.
What you get
True multi-warehouse stock
QuickBooks Online tracks items globally; FLC Multiple Warehouse tracks them per location with full transfer audit trails. Cost layers follow the units.
FIFO costing
Real cost layers, not just averages. Every COGS posting traces back to the exact purchase batches it consumed.
Landed-cost absorption
Freight, customs, storage, packaging — Layer-2 overhead absorbs into your cost layers automatically, so unit cost reflects what each item actually costs to land.
Platform sales reconciliation
Drop in your Amazon, Shopify, or Walmart CSV — or pull sales receipts from QuickBooks Online. We match SKUs, consume the right cost layers, and post a single COGS journal entry to QuickBooks Online at period close. Sales receipts stay where you entered them — QuickBooks Online remains the system of record.
Period close that locks
When a period closes, it stays closed. Immutable snapshots, full audit log, regulatory-ready.
Encrypted credentials, revocable any time
OAuth refresh tokens are encrypted at rest. Disconnect from inside FLC Multiple Warehouse or from QuickBooks Online's My Apps page; we honour both immediately. Disconnect revokes access and removes this app from My Apps until you authorize again; use Sign Out in the app only when you want to end your session without touching QuickBooks.
Intuit App Partner — Silver tier
FLC Multiple Warehouse is built and maintained by Four Lines Capital. We follow Intuit's security and branding guidelines, use the official OAuth 2.0 + OpenID Connect flow, and revoke tokens immediately on disconnect via Intuit's Revoke Access API.
Intuit, QuickBooks, QuickBooks Online, QuickBooks Desktop, TurboTax, ProConnect and Mint are registered trademarks of Intuit Inc.
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