Running an eCommerce business can be thrilling — but behind the scenes, it’s often chaotic. If you’ve ever struggled with tracking inventory, managing cost of goods sold (COGS), approving purchase orders, or reconciling with your accounting software, you’re not alone.
The good news? You don’t need to patch together a dozen systems anymore. There’s a better way to run your inventory, finance, and fulfillment — all from one place.
What You’re Really Looking For (and What Most Tools Lack)
eCommerce sellers need more than a simple stock tracker. You need a smart, integrated inventory management system that can handle:
- 🔢 COGS management: Track product costs accurately, even with variable suppliers or bundles
- 📦 Quantity tracking: Across multiple warehouses or sales channels
- ✅ Purchase order (PO) approvals: Streamline reordering and manager approvals
- 🧾 Sales receipt matching: Tie orders to fulfillment and shipping for accurate bookkeeping
- 📊 Detailed inventory reports: By product, category, vendor, warehouse, and time period
…and most importantly, it must sync with both your eCommerce platforms and your accounting software.
🔗 Platform Integration Is the Key
If your business runs on:
- Shopify
- Amazon
- WooCommerce
…your inventory system must talk to these platforms in real time. But that’s not all.
It must also sync with your accounting tools:
- QuickBooks Online (QBO)
- Xero
This two-way sync ensures your sales data, inventory movement, and financial transactions are aligned — saving time and reducing errors at every step.
The Ideal Inventory System for eCommerce Businesses Should Offer:
| Feature | Why It Matters |
|---|---|
| Real-Time Inventory Sync | Prevents overselling and stockouts across all sales channels |
| COGS & Margin Reporting | Tracks profitability and true cost per unit |
| Multi-Warehouse Support | Manages stock across locations, dropshippers, or 3PL partners |
| Auto PO Generation | Reorders based on thresholds to avoid manual work |
| Integrated Sales Receipts | Connects orders to fulfillment and accounts |
| Shopify/Amazon/Woo Sync | Consolidates orders and inventory updates in one place |
| QBO/Xero Integration | Automatically records financial activity for accurate reporting |
Why We Recommend SOS Inventory for eCommerce
One solution that checks all these boxes is SOS Inventory — especially when paired with the expert setup from Realtax.
SOS Inventory offers:
- Deep integration with Shopify, Amazon, and WooCommerce
- Two-way syncing with QBO and Xero
- Built-in tools for COGS tracking, PO approvals, and sales receipt management
- Advanced reporting, including inventory valuation and profitability per product
- Real-time updates across channels — no more mismatches or delays
With Realtax, you’ll get a setup tailored to your sales model, warehouse strategy, and financial workflow.
Example: What This Looks Like in Action
- You sell on Shopify and Amazon
- A customer places an order on Amazon
- Inventory decreases in real-time across both Amazon and Shopify
- SOS Inventory auto-updates QuickBooks Online with the sale
- Your system generates a sales receipt and adjusts COGS
- You receive a notification to reorder a product via a PO
- A manager reviews and approves the PO — no spreadsheets required
What Our Clients Say
“SOS Inventory saved us hours of manual work every week. It brought our Shopify and Amazon stock into one place and finally made QBO reflect reality.”
— An apparel brand owner scaling across three warehouses
“Before SOS and Realtax, our COGS calculations were guesswork. Now we know exactly what we’re earning on every SKU.”
— Tax consultant with eCommerce clients
Planning for Growth? Do It with the Right Tools
Your business won’t stop growing — and your systems shouldn’t either. By choosing the right inventory management solution today, you’re setting your business up for faster order fulfillment, cleaner books, and better profitability tomorrow.
Let’s Find Your Perfect eCommerce Inventory Solution
Realtax helps businesses implement and optimize SOS Inventory and other powerful systems based on your sales channels, accounting platform, and growth goals.
Ready to streamline your operations, sync your inventory with accounting, and stop stressing over stock levels?
💬 Talk to an inventory expert at Realtax today — and take control of your eCommerce backend.