INVENTORY ALLOCATION · ORDER FULFILLMENT · ADMISSION CONTROL · REVERSE LOGISTICS
Omnichannel Fulfillment and Returns Control Tower
An order can be fulfilled from a store, a regional warehouse, the central DC, a
cross-dock, or a supplier — and part of it can come back as a return. This system
allocates every order across the network with a greedy marginal-cost heuristic
improved by Adaptive Large Neighborhood Search, gates admission under scarce
inventory, and routes returns to restock, repair, recycling, or disposal.
Fulfillment and Returns Pipeline
1 · Order Allocation
- Greedy Marginal Cost ranking of every candidate fulfillment node
- Split shipments and ship-from-store emerge natively from ranking
- Assortment substitution triggered automatically on stockout
2 · Dynamic Admission Control
- Scarcity-scored accept / defer-to-backorder decision per order
- Protects scarce stock for higher-priority expected demand
3 · Adaptive Large Neighborhood Search
- Destroys a random batch of allocated orders each iteration
- Reinserts by priority, keeping only cost-improving moves
4 · Reverse Logistics
- Return probability and condition (quality score) sampled per unit
- Rule-based routing: restock store / restock DC / repair / recycle / dispose
Demo Scenarios
Fast vs. Economical vs. Green — Same Order
Three delivery objectives compared for the same order in the
green-logistics-push scenario, with the resulting cost, lead time, and carbon
footprint of each choice.
| Option | Cost (USD) | Lead Time (hours) | Carbon (kg) | Nodes Used |
|---|
Benchmark Results
| Scenario | Fill Rate | On-Time SLA | Split Rate | Gross Margin (USD) | Carbon (kg) | Returns |
|---|