Supply Chain Glossary

Definitions for the most important supply chain, logistics, and inventory terms. 107 terms and counting.

Showing 107 of 107 terms
3PL (Third-Party Logistics)
A company that provides outsourced logistics services including warehousing, fulfillment, and transportation.
Logistics
4PL (Fourth-Party Logistics)
A lead logistics provider that manages an entire supply chain on behalf of a shipper, including multiple 3PLs.
logistics
ABC Analysis
An inventory categorization method that ranks items by their consumption value into A, B, and C classes.
Inventory
ASN (Advance Shipping Notice)
An electronic notification of shipment contents and timing sent ahead of delivery, usually via EDI 856.
logistics
Backhaul
The return trip of a transport vehicle from its delivery destination back to its point of origin, ideally loaded with revenue freight.
Logistics
Backorder
An order for a product that is currently out of stock and will be fulfilled when inventory is replenished.
Inventory
Bill of Lading (BOL)
A legal document issued by a carrier that serves as a receipt, contract, and title for shipped goods.
Documentation
BOL (Bill of Lading)
A legal document between shipper and carrier detailing the goods, quantities, and destination of a shipment.
freight
Bonded Warehouse
A secured warehouse where imported goods can be stored without paying customs duties until they are released.
Warehousing
Bottleneck
The slowest step in a process that limits the overall throughput of the system.
Operations
Breakbulk
Non-containerized cargo that is loaded individually onto a vessel rather than in shipping containers.
Freight
Bullwhip Effect
The amplification of demand variability as orders move upstream in a supply chain.
Planning
Capacity Planning
The process of determining the production, storage, or transportation capacity needed to meet expected demand.
Planning
Cargo Manifest
A document listing all cargo carried on a vessel, aircraft, or truck on a specific voyage or trip.
Documentation
Carrier
A company that physically transports freight by truck, rail, ocean, or air.
freight
CBM (Cubic Meter)
The standard unit of volume measurement used in international ocean and air freight.
Freight
CFS (Container Freight Station)
A facility where LCL shipments are consolidated into or deconsolidated from ocean containers.
Warehousing
Chassis
A wheeled frame used to transport an intermodal shipping container by truck.
Equipment
CIF (Cost, Insurance, and Freight)
An Incoterm where the seller pays the cost, insurance, and freight to bring goods to the destination port.
Documentation
COGS (Cost of Goods Sold)
The direct cost of producing goods sold by a company, including materials and direct labor.
inventory
Consignee
The party named in a shipping document as the receiver of the goods.
Documentation
Consignor
The party that ships the goods, also known as the shipper.
Documentation
Cross-Docking
A logistics practice where incoming shipments are unloaded and reloaded directly to outbound trucks with little or no storage.
warehousing
Customs Broker
A licensed professional who arranges customs clearance for imported goods on behalf of an importer.
Documentation
Cycle Count
A perpetual inventory audit where a subset of SKUs is counted on a rolling schedule rather than a full physical count.
inventory
DDP (Delivered Duty Paid)
An Incoterm where the seller delivers goods cleared for import and pays all duties and taxes.
freight
Deadhead
Miles a transport vehicle travels empty, without revenue-generating freight.
Logistics
Demand Forecasting
The process of predicting future customer demand using historical data, market signals, and statistical methods.
Planning
Demand Planning
The cross-functional process of producing a consensus forecast that drives supply and inventory plans.
Planning
Demurrage
Charges assessed by a carrier when containers or rail cars are held beyond free time at a port or terminal.
freight
Detention
Carrier fees for holding a truck or driver beyond the free loading or unloading window.
freight
Distribution Center (DC)
A warehouse focused on rapid receipt, storage, and shipment of finished goods to downstream customers or stores.
Warehousing
Drayage
Short-distance trucking, typically between a port or rail yard and a nearby warehouse.
freight
Dropshipping
A fulfillment model where a retailer sells products that are shipped directly from the supplier to the end customer.
Logistics
Dunnage
Packing material used to protect, brace, or separate cargo during transport.
Equipment
Dwell Time
The time freight or equipment sits idle at a facility waiting to be moved.
freight
DWT (Deadweight Tonnage)
A measure of how much weight a vessel can safely carry, including cargo, fuel, crew, and supplies.
Freight
EDI (Electronic Data Interchange)
A standard format for exchanging business documents like purchase orders and ASNs between trading partners.
logistics
EOQ (Economic Order Quantity)
The order quantity that minimizes the total cost of ordering and holding inventory.
inventory
ETA (Estimated Time of Arrival)
The expected date and time a shipment or vehicle will arrive at its destination.
Logistics
ETD (Estimated Time of Departure)
The expected date and time a shipment or vehicle will depart its origin.
Logistics
EXW (Ex Works)
An Incoterm where the buyer is responsible for collecting goods from the seller's premises and all downstream costs and risks.
Documentation
FAS (Free Alongside Ship)
An Incoterm where the seller delivers goods alongside the vessel at the named port of shipment.
Documentation
FCL (Full Container Load)
An ocean freight shipment that fills an entire container booked by a single shipper.
freight
FEFO (First Expired, First Out)
An inventory rotation policy where items with the earliest expiration date are shipped first.
Inventory
FIFO (First In, First Out)
An inventory method where the oldest stock is sold or used first.
Inventory
Fill Rate
The percentage of customer demand met from on-hand inventory without backorders.
inventory
FOB (Free On Board)
An Incoterm where the seller delivers goods on board the vessel; risk transfers at the ship rail.
freight
Freight Class
A standardized NMFC rating system (50–500) used to price LTL shipments based on density.
Freight
FTL (Full Truckload)
A shipping arrangement where one shipper's cargo fills an entire truck trailer.
Freight
Hazmat
Hazardous materials regulated by DOT or IMO requiring special packaging, labels, and documentation.
freight
Inbound Logistics
Movement and storage of materials from suppliers into a business.
logistics
Incoterms
International Chamber of Commerce rules defining seller and buyer responsibilities in trade transactions.
freight
Intermodal
Freight that moves in the same container across multiple modes such as truck, rail, and ship.
freight
JIT (Just-in-Time)
A pull-based inventory strategy that schedules supply to arrive exactly when needed to minimize stock.
inventory
Kanban
A visual signaling system that controls the flow of materials based on actual consumption.
Operations
KPI (Key Performance Indicator)
A measurable value that shows how effectively an organization is achieving key objectives.
Operations
Last-Mile Delivery
The final leg of a shipment's journey from a transportation hub to the end customer's door.
Logistics
LCL (Less than Container Load)
Ocean freight shared with other shippers in a single container; charged by volume or weight.
freight
Lead Time
Total elapsed time from placing an order until receipt of goods, including processing and transit.
inventory
Lean Supply Chain
A management approach focused on eliminating waste and maximizing value across the supply chain.
logistics
LIFO (Last In, First Out)
An inventory accounting method where the most recently acquired stock is treated as sold first.
Inventory
LTL (Less-than-Truckload)
A freight shipping method where multiple shippers share space on a single truck.
Freight
Milk Run
A routing strategy where one vehicle picks up or delivers at multiple stops on a planned route.
Logistics
MOQ (Minimum Order Quantity)
The smallest order quantity a supplier will accept for a given SKU.
inventory
MRP (Material Requirements Planning)
A planning method that calculates the materials and components needed to produce finished goods on schedule.
Planning
NMFC (National Motor Freight Classification)
A standard published by NMFTA assigning items to one of 18 freight classes for LTL pricing.
freight
OEM (Original Equipment Manufacturer)
A company that manufactures products or components that are sold by another company under its own brand.
Sourcing
Omnichannel Fulfillment
A fulfillment strategy that delivers a seamless customer experience across stores, web, mobile, and marketplaces.
Logistics
On-Time In-Full (OTIF)
A KPI measuring the percent of orders delivered complete and on the requested date.
logistics
Order Cycle Time
The total time from when a customer places an order to when they receive it.
Operations
Outbound Logistics
Movement of finished goods from a business to customers.
logistics
Pallet
A flat platform used to move and stack goods; standard US size is 48x40 in (GMA).
warehousing
Perfect Order
An order that is delivered complete, on time, damage-free, and with accurate documentation.
Operations
Pick and Pack
The warehouse process of selecting items from inventory and packing them into shipments for customers.
Warehousing
Picking
The act of retrieving items from storage locations to fulfill customer orders.
Warehousing
PO (Purchase Order)
A buyer-issued document authorizing the purchase of goods or services at agreed terms.
inventory
Procurement
The end-to-end process of sourcing, negotiating, and purchasing goods and services from suppliers.
Sourcing
Push vs Pull Supply Chain
Two opposing approaches to inventory replenishment: push is forecast-driven, pull is demand-driven.
Planning
Reorder Point (ROP)
The inventory level that triggers a new purchase order to replenish stock.
Inventory
Reverse Logistics
The process of moving goods back from customers for returns, repair, refurbishment, or recycling.
logistics
RFID (Radio-Frequency Identification)
A technology that uses radio waves to automatically identify and track tags attached to objects.
Technology
S&OP (Sales and Operations Planning)
A cross-functional process that aligns demand, supply, and financial plans on a regular cadence.
Planning
Safety Stock
Extra inventory maintained to protect against demand variability and supply disruptions.
Inventory
SCAC Code
Standard Carrier Alpha Code - a unique 2–4 letter identifier for transportation companies.
Freight
SCM (Supply Chain Management)
The end-to-end management of the flow of goods, information, and finances from raw material to end customer.
Strategy
Shipping Container
A standardized steel box used to move freight across ocean, rail, and truck modes without rehandling the cargo.
Equipment
Six Sigma
A data-driven methodology for reducing defects and process variation.
Operations
SKU (Stock Keeping Unit)
A unique identifier assigned to each distinct product in inventory.
Inventory
SLA (Service Level Agreement)
A contractual commitment between provider and customer defining expected service levels and remedies for shortfalls.
Operations
Slip Sheet
A thin sheet of cardboard or plastic used in place of a pallet to save weight and cube.
warehousing
Stockout
A situation where an item is not available in inventory when a customer or production line needs it.
Inventory
Supplier
An organization that provides goods or services to another organization.
Sourcing
Supply Chain
The interconnected network of organizations, people, activities, and resources that produce and deliver a product to the end customer.
Strategy
Tare Weight
The weight of an empty container, vehicle, or packaging, excluding the cargo.
Freight
TEU (Twenty-foot Equivalent Unit)
A standard unit of container capacity equal to one 20-foot ISO shipping container.
Freight
Throughput
The rate at which a system produces or processes output over a given period.
Operations
TMS (Transportation Management System)
Software for planning, executing, and optimizing freight movements.
logistics
Tracking Number
A unique identifier assigned to a shipment that allows it to be located throughout transit.
Logistics
Transloading
The process of transferring a shipment from one mode of transport to another.
Logistics
UPC (Universal Product Code)
A 12-digit barcode standard used at retail point of sale.
inventory
Value Chain
The full set of activities a company performs to create and deliver a valuable product or service to customers.
Strategy
VMI (Vendor Managed Inventory)
A program where the supplier monitors and replenishes buyer inventory based on shared data.
inventory
Warehouse
A building used to store goods before they are distributed or sold.
Warehousing
Wave Picking
A warehouse strategy that groups orders into time-bound batches (waves) for picking, packing, and shipping.
Warehousing
WMS (Warehouse Management System)
Software for managing receiving, putaway, picking, and shipping in a warehouse.
warehousing
Yard Management
The discipline of tracking and orchestrating trailers, containers, and vehicles in a facility's yard and dock area.
Warehousing