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Fulfillment Engine

Intelligent item availability across multiple warehouses. The purpose of this module is not to manage fulfillment but to answer the question of if this produc tis available.

Responsibilities​

Inventory Management​

  • Track inventory across multiple warehouses
  • Sync with external inventory systems

Delivery Zone Management​

  • Define geographic delivery boundaries
  • Filter warehouses by deliverable zones
  • Estimate delivery time estimates
  • Apply zone-based constraints

Availability Checking​

  • Real-time inventory availability
  • Multi-warehouse aggregation
  • Zone-filtered results

Delivery Zones​

Concept​

Delivery zones define geographic areas where warehouses can deliver.

Zone Types​

Geographic polygon:

  • State or province boundaries
  • Custom drawn regions
  • Multi-state territories

Zone Properties​

Each zone has:

  • Geographic boundaries
  • Delivery time estimates
  • Serving warehouses
  • Pricing modifiers
  • Carrier restrictions

Multi-Warehouse Scenarios​

Scenario 1: Single Warehouse​

Order: 50 units to Chicago
Warehouse A (Milwaukee): 100 units in stock, serves Chicago, 1-day delivery
Result: Allocate all 50 from Warehouse A

Scenario 2: Split Shipment​

Order: 150 units to Chicago
Warehouse A (Milwaukee): 100 units in stock
Warehouse B (Indianapolis): 60 units in stock
Result: Split - 100 from A, 50 from B

Scenario 3: Zone Constraint​

Order: 100 units to rural Montana
Warehouse A: 200 units, doesn't serve Montana
Warehouse B: 80 units, serves Montana
Result: Can fulfill 80 units max

Scenario 4: Optimization​

Order: 200 units to Dallas
Warehouse A: Has stock, 800 miles away, 4 days, $150 shipping
Warehouse B: Has stock, 200 miles away, 2 days, $75 shipping
Result: Optimize for Warehouse B

Spatial Filtering​

Uses search engine for geographic queries:

Point-in-polygon:

  • Is delivery address within zone?

Radius search:

  • Warehouses within distance of address

Zone intersection:

  • Does warehouse's delivery zone include this location?

Fulfillment Engine: Smart allocation, optimized delivery.