Nexus ERP and eCommerce (Shopify, eMAG, WooCommerce): Inventory Sync and OMS 2026
Nexus does not natively sync inventory with Shopify, eMAG, or WooCommerce. Learn how to prevent overselling and build an omnichannel OMS on top of Nexus.
Mihai Istrati — CTO Azuvio · 2026-09-15 · 10 min · Integrări ERP
The Problem: Fragmented Inventory Across Channels
Manufacturers using Nexus sell via multiple channels: B2B distributors, own-brand Shopify stores, eMAG marketplace, WooCommerce, and physical stores using Nexus POS.
Without synchronization, businesses face: overselling, stockouts, cancellations, and negative reviews.
What Nexus Offers Natively
Nexus manages internal stock (multi-warehouse, multi-location, integrated POS), but lacks native connectors for Shopify, eMAG, and WooCommerce. Synchronization requires either custom development (8-25k€ per connector) or an OMS layer.
Building an Omnichannel OMS on top of Nexus
An OMS connects to Nexus as the single source of truth and distributes stock across channels based on specific rules:
1. Channel Allocation Rules: e.g., Safety stock B2B 60%, Shopify 25%, eMAG 15%.
2. Order Prioritization: B2B contract orders > Shopify > eMAG.
3. Reservation Rules: A pending Shopify order reserves stock for 30 minutes.
4. Smart Multi-Warehouse Routing: A Bucharest order is routed to the Bucharest warehouse; Cluj to Cluj.
5. Cross-Channel Returns: An eMAG return is sent to the B2B warehouse with automatic reconciliation.
Azuvio OMS Smart Layer — Pre-built for Nexus
Pre-built Connectors: Shopify, eMAG Marketplace API, WooCommerce, B2B Portal, Nexus POS.
Sync in <30 seconds following any change in Nexus.
Unified Dashboard for inventory across all channels plus pending allocations.
No-code Configurable Rules via a visual UI.
Typical Impact
| Indicator | Before (Isolated Nexus) | After (Nexus + OMS) |
|-----------|------------------------|--------------------|
| Overselling | 8-15% | <0.5% |
| B2C Cancellations | 10-20% | <2% |
| Manual Reconciliation Time | 4-6h/day | Automated |
| Recovered Sales | - | +50-120k€/year |
| B2C NPS | 35 | 65 |
Azuvio OMS Costs for Nexus
Setup + Connectors: 8-14k€
Subscription: 400-900€/month
Implementation Time: 4-7 weeks
Typical ROI: 3-6 months
Conclusion
While Nexus remains the system of record for inventory and production, Azuvio OMS adds the missing omnichannel layer. Eliminate overselling, recover lost sales, and boost your NPS.
Read the furniture manufacturer case study.