How to Build Your Own SOS Inventory
Replace SOS Inventory with a custom build. The #1 Rated Inventory Management App in QuickBooks Marketplace
Build Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Estimated Timeline
Based on 57 features at Weekend Project difficulty, expect about One weekend with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Key Features to Replicate
Top features across 8 categories. See all 57 features
Inventory Management(13 features)
Organize inventory by bins and aisles for warehouse management
Maintain detailed cost history for items including lot/serial distinctions
Calculate costs through assembly levels for accurate product costing
Support for FIFO, LIFO, and Weighted Average inventory valuation methods
Perform cycle counts to verify inventory accuracy without full shutdowns
+8 more in this category
Sales(6 features)
Set up contract pricing agreements with customers
Automatically calculate pricing based on cost plus margin
Create credit memos and process customer returns
Create estimates and quotes that can be converted to sales orders
Create and manage tiered pricing structures for different customer levels
+1 more in this category
Manufacturing(5 features)
Build assemblies and kits with unlimited BOM levels, auto-build on shipments, and track work-in-progress
Manage contract manufacturing workflows with vendor production tracking
Track job costs and labor tracking for manufacturing operations and project-based work
Support for process manufacturing with variable-yield manufacturing and co-products/by-products management
Create and manage work orders with work centers and track work-in-progress inventory
Purchasing(4 features)
Assign multiple vendors to items for supplier flexibility
Create purchase orders from sales orders, generate POs based on stock levels, manage blanket POs, and handle partial receiving
Generate reorder lists based on inventory levels and historical data
Calculate reorder points automatically from historical sales data
Fulfillment(3 features)
Manage drop shipping workflows with seamless order processing
Handle full or partial shipments from sales orders and manage multiple sales orders for the same customer
Create pick tickets from sales orders or invoices, manage shipments, generate packing slips, and update inventory on shipment
Inventory Tracking(3 features)
Generate, scan, and track inventory items using barcodes in multiple formats to speed up counting, receiving, locating, and shipping
Manage movement of batches by date of receipt and expiration with full traceability
Track individual items by serial number with comprehensive cost history and forward/backward traceability
Order Management(3 features)
Track and manage backorders with automated notifications
Create and manage RMA processes for product returns
Create sales orders, generate full or partial shipments, and create full or partial invoices that synchronize with QuickBooks Online
Reporting(3 features)
Create custom dashboards for viewing key business metrics
Analyze items with profit/loss reports and historical data
View real-time inventory with Ready to Pick/Ship status reports
Cost Calculator
Keep Paying SOS Inventory
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 57 features at very easy complexity.