What a single source of truth means in B2B commerce
April 2, 2026 · 5 min Lesezeit · OpusGo Team
A single source of truth means the webstore reads pricing, inventory and customer data straight from the ERP rather than keeping its own copy, so the website and the back office can never disagree. It eliminates overselling, wrong contract prices and the weekly ritual of reconciling two catalogs.
Every ERP, fluent in commerce.
Why two catalogs always drift
The moment the store keeps its own product and price tables, you have two versions of the truth connected by an export job. Every failure mode follows from that: the job runs late, someone edits the store directly, a new price list never gets mapped. Drift is not an accident in that architecture - it is the architecture.
What the store should read from the ERP
Stock by warehouse, so availability is real. Price lists and quantity breaks, so each logged-in customer sees their contract. Credit limits and terms, so orders that would breach a limit are caught at checkout instead of at invoicing. Order history and shipment status, so customers self-serve instead of calling.
- Live stock by warehouse
- Customer-specific price lists
- Credit limits and payment terms
- Order history and shipment status
What it eliminates
Overselling stops because availability is the ERP's availability. Price disputes stop because the checkout price is the contract price. The Friday reconciliation spreadsheet stops because there is nothing to reconcile - one system owns the data and everything else reads it.
How to get there
You do not need to rebuild the store; you need the store to stop owning data. An integration layer that reads the ERP in real time - and writes orders back - turns the existing storefront into a window onto the ERP. That is the entire idea behind OpusNext.
Kernaussagen
- Two catalogs connected by exports will always drift
- Stock, prices, credit and status belong to the ERP
- Checkout against ERP data ends overselling and disputes
- The store becomes a window, not a second database
Häufige Fragen
Is a nightly sync a single source of truth?+
No. Between runs the store serves yesterday's stock and prices - that gap is exactly where oversells and wrong quotes happen.
Does the ERP have to be the master for everything?+
For operational data - stock, pricing, customers, orders - yes. Marketing content like images and descriptions can live in the store or a PIM.
What about performance if every page reads the ERP?+
Modern layers cache reads and subscribe to ERP change events, so pages stay fast while staying current.