The Procurement Glossary

A procurement glossary is a reference that defines the terminology used across the buying cycle — sourcing, contracting, purchasing, payment, inventory, analytics and supplier management. This A–Z lists 300+ terms, each with a plain-language definition, a worked example and links to the related concepts around it.

Procurement has a language of its own. This glossary defines the terms that show up in requisitions, RFQs, purchase orders, contracts, invoices and spend reports — so buyers, finance and suppliers can speak the same language. Browse by letter or by category; every term links to the concepts and guides around it.

A

ABC Analysis — A method of classifying inventory or spend into A, B and C groups by value, so effort is focused on the most important.
Acceptance — The buyer's formal confirmation that delivered goods or services meet the agreed requirements, often triggering payment.
Accounts Payable (AP) — The function and ledger responsible for recording and paying what a business owes its suppliers.
Accrual — An accounting entry recognising a cost that has been incurred but not yet invoiced or paid.
Addressable Spend — The portion of total spend that procurement can realistically influence or manage.
Advance Shipping Notice (ASN) — An electronic notice from a supplier detailing a shipment's contents and timing before it arrives.
Anti-Bribery & Corruption (ABC) — Policies and controls to prevent giving or receiving bribes and other corrupt inducements in the buying process.
API Integration — Connecting two software systems through an application programming interface so they can exchange data automatically.
Approval Hierarchy — The ordered chain of approvers through which a purchase must pass, typically escalating with value.
Approval Workflow — The defined sequence of authorisations a requisition, order or invoice must pass through before it can proceed.
Approved Supplier List (ASL) — A controlled list of suppliers that have been vetted and authorised to supply a business, often by category.
Arbitration — A private dispute-resolution process where an independent arbitrator issues a binding decision instead of a court.
Artificial Intelligence in Procurement — The application of AI techniques to procurement tasks such as classification, forecasting, risk detection and negotiation support.
Audit Trail — A complete, time-stamped record of the steps and approvals in a transaction, showing who did what and when.
Auto-Renewal Clause — A contract term that automatically extends the agreement for a further period unless a party gives notice to cancel by a deadline.

B

Backorder — An order (or part of one) that cannot be filled immediately because stock is unavailable, held to be fulfilled when stock arrives.
Balanced Scorecard — A performance framework that tracks objectives across several dimensions rather than cost alone.
BATNA — The Best Alternative To a Negotiated Agreement — a party's strongest fallback if the current negotiation fails.
Battle of the Forms — The legal contest over whose standard terms govern a deal when buyer and supplier each try to impose their own.
Benchmarking — Comparing prices, costs or performance against internal history, peers or the market to judge competitiveness.
Bid — A supplier's formal priced response to a sourcing request, stating what it will supply, at what price and on what terms.
Bid Bond — A guarantee submitted with a bid that the bidder will honour its offer and enter the contract if selected.
Blanket Agreement — A long-term arrangement to buy specified items or services over time at agreed terms, executed through releases or call-offs.
Blanket Purchase Order — A single purchase order covering repeated deliveries of goods or services over a period, at agreed prices, released as needed.
Blockchain in Supply Chain — The use of distributed-ledger technology to record supply-chain transactions in a shared, tamper-evident way.
Breach of Contract — A failure by one party to perform an obligation under a contract without a lawful excuse.
Budget — A financial plan allocating expected spend across categories, departments or projects for a period.
Budget Holder — The person accountable for a budget and for authorising spend against it.
Bullwhip Effect — The amplification of demand variability as it travels up the supply chain, causing swings in orders and stock.
Business Case — A structured justification for a proposed decision or investment, weighing costs, benefits and risks.
Business Continuity Planning (BCP) — Planning to keep critical operations running, or recover them quickly, when disruption strikes.

C

Call-Off Order — An individual order placed against a pre-agreed framework or blanket agreement, drawing down on its agreed prices and terms.
Capital Expenditure (CapEx) — Spending on long-lived assets such as equipment, buildings or vehicles, capitalised and depreciated over time.
Cash Flow — The movement of money into and out of a business over time.
Catalog — A curated, priced list of items available for purchase, from which buyers requisition without needing a fresh quote.
Category Council — A cross-functional group that governs strategy and decisions for a spend category.
Category Management — Managing related groups of spend as strategic business units, each with a tailored strategy and dedicated ownership.
Category Strategy — A plan for how a business will source and manage a specific spend category to maximise value and manage risk.
Center of Excellence (CoE) — A central team that develops and shares procurement best practice, tools and expertise across the organisation.
Center-Led Procurement — A hybrid model where a central team sets strategy, contracts and standards while local units execute buying.
Centralized Procurement — An operating model in which a single central team controls purchasing decisions across the organisation.
Change Management — The structured approach to helping people adopt new processes, systems and behaviours.
Chart of Accounts (CoA) — The structured list of account codes a business uses to record and classify financial transactions.
Clause Library — A repository of pre-approved standard contract clauses that legal and procurement teams reuse when drafting agreements.
Cloud Procurement — Delivering procurement software as an internet-hosted service (SaaS) rather than on-premise installation.
Collaborative Planning, Forecasting & Replenishment (CPFR) — A practice where buyer and supplier share forecasts and plans to synchronise supply with demand.
Confidentiality — The obligation to protect and not disclose sensitive information shared under a business relationship.
Conflict of Interest — A situation where personal interests could improperly influence a procurement decision.
Consignment Stock — Inventory held at the buyer's site but owned by the supplier until it is consumed, when the buyer pays for it.
Consortium Purchasing — Buying jointly with other organisations to aggregate volume and secure better pricing and terms than any member could alone.
Continuous Improvement — An ongoing effort to incrementally improve processes, performance and outcomes over time.
Contract — A legally binding agreement between buyer and supplier setting out what will be supplied, at what price and on what terms.
Contract Compliance — The extent to which actual buying follows the prices, terms and preferred suppliers set in contracts.
Contract Lifecycle Management (CLM) — The end-to-end management of contracts using software — authoring, negotiation, approval, execution, storage and renewal.
Contract Management — The active administration of contracts through their life — from execution and compliance monitoring to renewal or termination.
Corporate Social Responsibility (CSR) — A company's commitment to operate ethically and contribute positively to society and the environment.
Corrective Action Request (CAR) — A formal request asking a supplier to investigate a problem, fix its root cause and prevent recurrence.
Cost Allocation — The assignment of shared or indirect costs to the departments, projects or products that drive them.
Cost Avoidance — Value from preventing a cost increase or future expense, rather than reducing current spend.
Cost Breakdown — An itemised disclosure of the components that make up a supplier's price, such as materials, labour, freight, overhead and margin.
Cost Center — An organisational unit to which costs are assigned for tracking and accountability.
Cost of Goods Sold (COGS) — The direct costs of producing the goods a company sells, including direct materials and labour.
Cost Reduction — Lowering the actual price or cost paid for goods and services, reducing current spend.
Cost Savings — A reduction in the price or cost of a purchase compared with a baseline, delivered through sourcing or negotiation.
Credit Rating — An assessment of an entity's creditworthiness — its likelihood of meeting financial obligations.
Credit Terms — The conditions under which a supplier extends trade credit to a buyer, including limit, period and any security.
Cross-Docking — A logistics practice where incoming goods are transferred directly to outbound transport with little or no storage.
Currency (FX) Risk — The risk that exchange-rate movements change the cost of goods bought in a foreign currency.
Customs Duty — A tax levied by a government on goods imported across its borders.
Cycle Counting — Regularly counting a subset of inventory items to keep stock records accurate without a full stocktake.
Cycle Time — The total time taken to complete a defined process, such as procure-to-pay or requisition-to-order.

D

Data Protection — Safeguarding personal and sensitive data handled in procurement, in line with privacy laws.
Data Quality — The accuracy, completeness and consistency of the data underpinning procurement analysis and decisions.
Days Inventory Outstanding (DIO) — The average number of days inventory is held before it is used or sold.
Days Payable Outstanding (DPO) — The average number of days a company takes to pay its suppliers.
Days Sales Outstanding (DSO) — The average number of days a company takes to collect payment from its customers.
Decentralized Procurement — An operating model in which individual business units or sites make their own purchasing decisions.
Delegation of Authority (DOA) — The formal policy defining who can approve spend and up to what value, at each level of an organisation.
Demand Aggregation — Combining requirements from multiple buyers, sites or periods to purchase in larger, more economical volumes.
Demand Forecasting — Predicting future demand for goods to guide purchasing, inventory and production planning.
Demand Management — Influencing what and how much the business buys — challenging need, standardising specs and curbing over-consumption — to reduce spend at the source.
Digital Transformation — The organisation-wide adoption of digital technology to fundamentally change how procurement operates and delivers value.
Direct Spend — Spend on goods and services that go directly into the products a company makes or sells.
Dispute Resolution — The contractually agreed process for resolving disagreements — often escalation, then mediation or arbitration, before litigation.
Dual Sourcing — Deliberately using two suppliers for the same item to reduce dependency and supply risk.
Due Diligence — The investigation of a supplier's legitimacy, capability, financial health and compliance before engaging it.
Duplicate Payment — Paying the same invoice more than once, usually due to data errors, duplicate vendors or weak controls.
Duplicate Vendor — More than one vendor-master record representing the same real supplier, caused by data-entry variation.
Dynamic Discounting — A flexible early-payment scheme where the discount varies with how early the buyer pays, agreed on a sliding scale.

E

E-Catalog — A digital catalog of approved products and prices that buyers order from within a procurement system.
e-Invoicing — The exchange of invoices in a structured electronic format that can be processed automatically, without manual data entry.
E-Procurement — The use of web-based systems to manage purchasing activities electronically, from requisition to payment.
e-Sourcing — The use of software to run sourcing events — building RFx, distributing them to suppliers, and collecting and comparing responses online.
Early Payment Discount — A discount a supplier offers for paying an invoice ahead of its due date, such as '2/10 net 30'.
Economic Order Quantity (EOQ) — The order quantity that minimises total inventory cost by balancing ordering cost against holding cost.
Electronic Data Interchange (EDI) — A standardised format for exchanging business documents such as orders and invoices computer-to-computer.
Electronic Signature (e-Signature) — A legally recognised digital method of signing a document, replacing a handwritten signature.
Enterprise Resource Planning (ERP) — An integrated software system that manages core business processes — finance, procurement, inventory, HR — on a shared database.
Environmental, Social & Governance (ESG) — A framework for assessing an organisation's environmental, social and governance performance.
Ethical Sourcing — Sourcing goods and services in a way that respects human rights, fair labour and responsible practices throughout the supply chain.
Evaluation Criteria — The defined factors — and their relative weights — used to score and compare supplier bids or proposals.
Exit Plan — A pre-agreed plan for winding down a supplier relationship smoothly, covering handover, data and continuity of supply.
Expediting — Proactively chasing a supplier to ensure an order is delivered on time, especially when a delay would disrupt operations.
Expense Management — The process of controlling and reimbursing employee-incurred costs such as travel, meals and small purchases.

F

Fill Rate — The percentage of ordered quantity a supplier delivers from stock without shortfall or backorder.
Financial Stability Assessment — An evaluation of a supplier's financial health to gauge the risk that it fails or cannot meet commitments.
Force Majeure — A clause excusing a party from performance when extraordinary events beyond its control (e.g. disaster, war) prevent it.
Framework Agreement — An umbrella agreement setting pre-negotiated prices and terms with one or more suppliers, from which individual orders are placed as needed.
Freight — The transport of goods and the charge for that transport.
Freight Consolidation — Combining multiple shipments into fewer, fuller loads to cut transport cost per unit.

G

General Ledger (GL) — The central accounting record holding all of a company's financial transactions.
Goods Receipt (GRN) — The record confirming that ordered goods have arrived, capturing quantity and condition against the purchase order.
Goods Received Not Invoiced (GRNI) — An accounting position where goods have been received but the supplier's invoice has not yet arrived or been processed.
Governing Law — The jurisdiction whose laws will be used to interpret and enforce a contract.
Group Purchasing Organization (GPO) — An entity that aggregates the purchasing volume of many members to negotiate discounts with suppliers on their behalf.
Guided Buying — A buying experience that steers users to compliant, preferred choices with a simple, consumer-like interface.

H

Hard Savings — Savings that produce a measurable reduction in actual spend, visible in the budget.
Harmonized System (HS) Code — A standardised international numbering system for classifying traded products, used to determine customs duties.
Hosted Catalog — A supplier catalog whose item and price data is loaded into and stored within the buyer's procurement system.

I

Import — Bringing goods into a country from abroad, subject to customs, duties and regulatory requirements.
Incoterms — Standard international trade terms defining who is responsible for shipping, insurance, duties and risk at each point of a delivery.
Indemnity — A contractual promise by one party to cover specified losses or liabilities suffered by the other.
Index-Linked Pricing — A contract pricing mechanism where the price moves automatically with a published index rather than by renegotiation.
Indirect Spend — Spend on goods and services that support operations but don't go into the end product — such as office supplies, IT, travel and facilities.
Intellectual Property (IP) Rights — Legal rights over creations such as designs, software, patents and trademarks, and who owns them under a contract.
Internal Controls — The policies, procedures and system checks that safeguard assets, ensure accurate records and prevent fraud.
Inventory — The goods and materials a business holds for use, sale or production.
Inventory Carrying Cost — The total cost of holding inventory — capital tied up, storage, insurance, obsolescence and shrinkage.
Inventory Turnover — How many times inventory is sold or used and replaced over a period — a measure of inventory efficiency.
Invoice — A supplier's bill requesting payment for goods or services delivered, itemising what was supplied and the amount due.
Invoice Approval — The step of authorising a matched (or exception) invoice for payment, per policy and delegation of authority.
Invoice Financing (Factoring) — A supplier's use of its unpaid invoices as collateral to obtain immediate cash from a financier.
ISO 9001 — An internationally recognised standard for quality management systems.

J

Just-in-Case (JIC) — An inventory strategy of holding extra stock to buffer against disruption, prioritising resilience over lean efficiency.
Just-in-Time (JIT) — An inventory strategy where materials arrive exactly when needed, minimising stock held.

K

Key Performance Indicator (KPI) — A metric chosen to track progress toward a specific objective.
Know Your Supplier (KYS) — The practice of verifying and continually understanding who your suppliers are, their ownership and their risk profile.
Kraljic Matrix — A model that classifies purchases by supply risk and profit impact to guide category and supplier strategy.

L

Landed Cost — The total cost of a product delivered to the buyer's door, including price, freight, insurance, duties and handling.
Lead Time — The elapsed time between placing an order and receiving the goods.
Lean Procurement — Applying lean principles to eliminate waste and add value across procurement processes.
Leverage — The relative bargaining power a buyer or supplier holds in a negotiation, driven by factors like volume, alternatives and switching cost.
Life-Cycle Costing — A costing method that sums all costs of an asset across its whole life, from acquisition through operation to disposal.
Limitation of Liability — A clause capping the amount or types of loss a party can be held liable for under a contract.
Liquidated Damages — A contractually fixed sum payable by a supplier for a specified breach, agreed in advance as a genuine estimate of the buyer's loss.
Logistics — The management of the movement and storage of goods — transport, warehousing, handling and delivery.

M

Machine Learning — A branch of AI in which systems learn patterns from data to make predictions or classifications without explicit rules.
Make-or-Buy Decision — The analysis of whether to produce a good or service in-house or purchase it from an external supplier.
Master Data Management (MDM) — The discipline of maintaining a single, accurate, consistent set of core reference data across systems.
Master Service Agreement (MSA) — An overarching contract setting the general terms governing a relationship, under which specific work is commissioned via SOWs or orders.
Maverick Buying — Purchasing behaviour that ignores agreed processes and contracts — the human activity behind maverick spend.
Maverick Spend — Purchasing done outside agreed processes, contracts or preferred suppliers — 'off-contract' buying.
Milestone — A defined checkpoint in a project or contract, often tied to a deliverable and a payment.
Minimum Order Quantity (MOQ) — The smallest quantity a supplier is willing to sell in a single order.
Modern Slavery Compliance — Measures to identify and prevent forced labour, human trafficking and exploitation in supply chains.

N

Negotiation — The discussion between buyer and supplier to agree price, terms and conditions before a contract or order is placed.
Net Terms (Net 30 / 60 / 90) — Payment terms specifying the number of days a buyer has to pay in full after the invoice date.
No PO, No Pay — A policy that suppliers will not be paid unless a valid purchase order was raised before the goods or services were delivered.
Non-Conformance — A failure of a product, service or process to meet its specified requirements.
Non-Disclosure Agreement (NDA) — A contract in which parties agree to keep shared information confidential and not disclose it to others.
Non-PO Invoice — A supplier invoice received without a matching purchase order, common for utilities, rent and ad-hoc services.

O

Obsolescence — The loss of value when inventory becomes outdated, unusable or unsellable.
Off-Contract Spend — Spend that bypasses existing negotiated contracts or frameworks, missing agreed prices and terms.
On-Time In-Full (OTIF) — A delivery metric measuring the share of orders delivered both on the promised date and in the complete quantity.
Open-Book Costing — A pricing arrangement in which the supplier discloses its actual costs and agreed margin, so the buyer can see how the price is built up.
Operating Expenditure (OpEx) — Day-to-day running costs expensed in the period incurred, such as supplies, utilities, rent and services.
Order Confirmation — A supplier's acknowledgement that it has accepted a purchase order and will supply as ordered, often confirming price and delivery date.
Order Fulfillment — The process of receiving, processing and delivering orders to the requester or customer.
Outsourcing — Contracting an external supplier to perform a function or produce goods that could otherwise be done in-house.

P

Pareto Principle (80/20 Rule) — The observation that roughly 80% of effects come from 20% of causes — e.g. 80% of spend from 20% of suppliers.
Payment Terms — The agreed conditions for when and how a buyer pays a supplier, such as 'net 30 days' from invoice date.
Performance Bond — A guarantee that a supplier will fulfil its contractual obligations, giving the buyer financial recourse if it fails.
Period-End Close — The accounting process of finalising the books at the end of a period, including reconciling procurement liabilities.
Policy Compliance — The extent to which actual buying behaviour follows the organisation's procurement policy.
Predictive Analytics — The use of historical data and statistical models to forecast future outcomes.
Preferred Supplier — A supplier a business has chosen to favour for a category, usually because of negotiated pricing, reliability or a framework agreement.
Preferred Vendor Program — A formal scheme designating and steering business to chosen vendors that meet quality, price and service standards.
Price Index — A published measure tracking price changes for a commodity or category over time.
Process Cost per Order — The internal administrative cost of processing a single purchase order, covering staff time, systems and overhead.
Procure-to-Pay (P2P) — The end-to-end operational cycle of buying goods and services — from requisition and approval through purchase order, receipt, invoice matching and payment.
Procurement Analytics — The analysis of procurement data to generate insight into spend, performance, savings and risk.
Procurement Automation — The use of software to perform procurement tasks with little or no manual intervention.
Procurement Card (P-Card) — A company payment card issued to staff for low-value purchases, replacing requisitions and POs for small buys.
Procurement Compliance — Adherence to the policies, contracts, laws and controls that govern how an organisation buys.
Procurement Dashboard — A visual, at-a-glance display of key procurement metrics and trends for monitoring and decision-making.
Procurement Excellence — The consistent achievement of high performance across procurement's cost, risk, service and innovation goals.
Procurement Fraud — Dishonest activity to gain improperly from the buying process — such as kickbacks, phantom vendors or invoice fraud.
Procurement Governance — The framework of policies, controls, roles and decision rights that direct and oversee procurement.
Procurement KPI — A quantified measure of procurement performance, such as savings, cycle time, compliance or supplier OTIF.
Procurement Maturity — A measure of how developed an organisation's procurement capability is across people, process, technology and data.
Procurement Operating Model — The design of how procurement is organised — its structure, roles, processes and governance.
Procurement Planning — The process of forecasting needs and scheduling sourcing activity to meet them on time and on budget.
Procurement Policy — The documented rules governing how purchases must be made — thresholds, approvals, preferred suppliers and ethics.
Procurement Software — Software that digitises and automates procurement processes such as sourcing, purchasing, contracts and supplier management.
Procurement Strategy — A long-term plan that aligns procurement activity with organisational goals across categories, suppliers and processes.
Procurement Transformation — A structured programme to significantly improve procurement's people, process, technology and value delivery.
Progress Payment — A payment made in stages as work progresses, typically tied to milestones on a project or large order.
Public Procurement — The purchasing of goods and services by government and public-sector bodies, governed by strict rules on fairness and transparency.
PunchOut — A connection that lets a buyer leave their procurement system, shop on a supplier's live website, and return the cart for approval and PO.
Purchase Order (PO) — A buyer's official document authorising a purchase from a supplier, stating items, quantities, prices and terms; once accepted it forms a contract.
Purchase Price Variance (PPV) — The difference between the actual price paid for an item and its standard or expected price.
Purchase Requisition (PR) — An internal request to buy something, raised by a staff member and routed for approval before any order is placed.

Q

Quality Assurance (QA) — The proactive processes that ensure goods and services will meet required quality standards.
Quality Control (QC) — The inspection and testing of goods to detect defects and confirm they meet specification.
Quality Inspection — The act of examining delivered goods against defined criteria, often at goods receipt.

R

Redlining — The process of marking up proposed changes to a contract during negotiation, showing edits both parties can review.
Regulatory Compliance — Adherence to the laws and regulations that apply to buying, importing and operating in a given market.
Reorder Point (ROP) — The inventory level at which a replenishment order should be placed to avoid running out before it arrives.
Replenishment — The process of restocking inventory to maintain target levels as items are consumed.
Request for Information (RFI) — A preliminary questionnaire used to gather information about the market and potential suppliers before running a formal RFQ or RFP.
Request for Proposal (RFP) — A sourcing document inviting suppliers to propose how they would meet a requirement, evaluated on approach and value — not price alone.
Request for Quotation (RFQ) — A sourcing document that asks multiple suppliers to price the same clearly-specified requirement so their bids are directly comparable.
Request for x (RFx) — An umbrella term for the family of formal sourcing requests — RFI, RFQ and RFP — used to solicit information or bids from suppliers.
Requisition-to-Order Cycle Time — The elapsed time from a requisition being raised to a purchase order being issued to the supplier.
Retention Payment — A portion of payment withheld until a supplier fully completes the work and any defects are remedied.
Return on Investment (ROI) — A measure of the value gained from an investment relative to its cost, used to justify procurement initiatives and technology.
Reverse Auction — A live, competitive sourcing event in which pre-qualified suppliers bid the price down in real time to win the buyer's business.
Risk Allocation — The contractual assignment of specific risks to whichever party is best placed to manage them.
Risk Assessment — The process of identifying risks and evaluating their likelihood and impact to prioritise mitigation.
Risk Register — A structured record of identified risks with their likelihood, impact, owners and mitigation actions.
Robotic Process Automation (RPA) — Software 'bots' that mimic human actions to automate repetitive, rules-based digital tasks across systems.
Root Cause Analysis (RCA) — A structured method for finding the underlying cause of a problem so it can be permanently fixed.

S

Safety Stock — Extra inventory held as a buffer against variability in demand or supply, to reduce the risk of stockouts.
Sanctions Screening — Checking suppliers and their owners against government sanctions and watchlists before and during engagement.
Savings Baseline — The reference price or cost against which savings are measured.
Scope 3 Emissions — Indirect greenhouse-gas emissions across a company's value chain, including those from purchased goods and services.
Second-Tier Supplier — A supplier to your supplier — one step removed in the supply chain from the buyer.
Segregation of Duties (SoD) — A control principle that splits critical steps among different people so no one individual controls a whole transaction.
Self-Service Procurement — An arrangement where employees raise their own compliant requisitions through an easy interface, without going through a buying desk.
Service Credit — A pre-agreed rebate the supplier gives the buyer when it fails to meet an SLA target.
Service Level Agreement (SLA) — A contractual commitment defining the level of service a supplier must deliver, with measurable targets and consequences for missing them.
Should-Cost Analysis — A bottom-up estimate of what a product or service ought to cost, built from its materials, labour, overhead and reasonable margin.
Single Sourcing — Choosing to buy an item from one supplier even though alternatives exist, usually to gain volume leverage or a deeper partnership.
SKU Rationalization — Reviewing and reducing the range of SKUs to eliminate redundant, slow-moving or unprofitable items.
Sole Sourcing — A situation where only one supplier can provide the required good or service, leaving the buyer no competitive alternative.
Source-to-Contract (S2C) — The upstream procurement process from identifying a need through sourcing to signing a contract.
Source-to-Pay (S2P) — The widest procurement cycle — strategic sourcing and supplier selection on top of the operational procure-to-pay process.
Sourcing — The upstream procurement activity of finding, evaluating and selecting the suppliers a business will buy from.
Specification — A precise description of what is required — the features, quality, quantity, standards and performance a supplier must meet.
Spend Analysis — The process of collecting, cleaning, classifying and analysing purchasing data to understand what an organisation buys, from whom and for how much.
Spend Classification — The categorisation of each transaction into a consistent taxonomy so spend can be analysed by category.
Spend Cube — A multi-dimensional view of spend data allowing analysis by supplier, category and business unit simultaneously.
Spend Management Software — Software that captures, classifies and analyses organisational spend to improve visibility and control.
Spend Taxonomy — A structured, hierarchical classification scheme used to organise spend into consistent categories.
Spend Under Management (SUM) — The proportion of addressable spend that is actively managed by procurement through contracts, sourcing and controls.
Spend Visibility — The degree to which an organisation can see and understand its total spend across categories, suppliers and business units.
Spot Buy — A one-off, ad-hoc purchase made outside any framework or contract, usually for an urgent or infrequent need.
Stakeholder Management — Identifying, engaging and aligning the people affected by or influencing a procurement decision.
Statement of Work (SOW) — A document defining the scope, deliverables, timeline and acceptance criteria for a services engagement.
Stock Keeping Unit (SKU) — A unique identifier for a distinct product or item, used to track inventory and sales.
Stockout — A situation where an item is unavailable because inventory has run out, disrupting operations or sales.
Straight-Through Processing — The end-to-end automated completion of a transaction without manual re-entry or intervention.
Strategic Sourcing — A structured, data-driven approach to sourcing that aligns supplier selection with long-term business goals rather than one-off price hunting.
Strategic Supplier — A supplier critical to the business — by spend, risk or capability — that warrants a close, managed relationship.
Sub-Tier Visibility — Insight into the suppliers beyond your direct (first-tier) suppliers, deeper into the supply chain.
Supplier — An organisation that provides goods or services to a buyer in exchange for payment.
Supplier Audit — A formal on-site or documentary review of a supplier's processes, quality systems or compliance.
Supplier Base — The full set of suppliers an organisation actively buys from.
Supplier Certification — Formal verification that a supplier or product meets a recognised standard.
Supplier Code of Conduct — A statement of the ethical, labour, safety and environmental standards a buyer expects its suppliers to uphold.
Supplier Collaboration — Working jointly with suppliers on shared goals such as cost reduction, innovation, quality or forecasting.
Supplier Consolidation — Reducing the number of suppliers in a category by concentrating spend with fewer, better-managed vendors.
Supplier Development — Working actively with a supplier to build its capability, quality or capacity for mutual benefit.
Supplier Discovery — The process of finding potential new suppliers for a requirement, using marketplaces, directories, referrals and market research.
Supplier Diversity — A programme to deliberately include suppliers owned by under-represented groups in the supply base.
Supplier Information Management (SIM) — The systematic capture, storage and maintenance of supplier data such as contacts, banking, certificates and compliance status.
Supplier Management — The discipline of selecting, onboarding, evaluating and developing suppliers to maximise value and minimise risk over time.
Supplier Onboarding — The process of setting up a new supplier to trade — collecting details, verifying compliance and adding it to systems.
Supplier Performance Management — The ongoing measurement of how well suppliers meet expectations on quality, delivery, cost and service.
Supplier Portal — A self-service online system where suppliers manage their own data, POs, invoices, and communications with the buyer.
Supplier Prequalification — The process of screening suppliers against minimum requirements before inviting them to bid, to ensure only capable, compliant suppliers compete.
Supplier Rationalization — The structured review and reduction of a supplier base to eliminate redundant, dormant or underperforming vendors.
Supplier Relationship Management (SRM) — A strategic approach to managing key supplier relationships to unlock mutual value beyond price.
Supplier Risk — The exposure a buyer faces from a supplier's potential failure — financial, operational, compliance or reputational.
Supplier Scorecard — A structured summary rating a supplier across key metrics to track and compare performance over time.
Supplier Segmentation — Grouping suppliers by importance and risk so management effort is focused where it delivers most value.
Supplier Selection — The decision process of choosing which supplier (or suppliers) to award business to after evaluating bids or proposals.
Supply Chain — The end-to-end network of organisations, people, activities and resources that move a product from raw material to end customer.
Supply Chain Finance (SCF) — Financing arrangements, often bank-backed, that let suppliers get paid early while the buyer pays on normal terms.
Supply Chain Management (SCM) — The coordination of all supply-chain activities to deliver goods efficiently, reliably and at the right cost.
Supply Chain Mapping — Documenting the suppliers, sites and flows in a supply chain, including lower tiers, to reveal dependencies and risk.
Supply Risk — The risk that supply of a good or service is disrupted, constrained or made more costly.
Sustainable Procurement — Buying in a way that minimises environmental harm and maximises social and economic benefit over the whole life cycle.

T

Tail Spend — The large number of low-value transactions and suppliers that together make up a small share of total spend but a big share of effort.
Tail Spend Management — The practice of bringing the fragmented, low-value 'tail' of spend under control to cut cost and effort.
Tender — A formal, often public, invitation for suppliers to submit competitive offers for a defined contract, common in government and large-enterprise buying.
Termination for Cause — Ending a contract because the other party has materially breached it, usually after a chance to remedy the breach.
Termination for Convenience — A contractual right to end an agreement without the other party being at fault, usually with notice and sometimes a fee.
Terms and Conditions (T&Cs) — The standard clauses governing a transaction or relationship, covering rights, obligations, liabilities and remedies.
Third-Party Logistics (3PL) — Outsourcing logistics activities — warehousing, transport, fulfilment — to a specialist provider.
Three-Way Matching — An invoice-control check comparing the purchase order, the goods-receipt record and the supplier invoice before payment.
Total Cost of Ownership (TCO) — The full lifetime cost of a purchase — not just the price, but delivery, installation, operation, maintenance, downtime and disposal.
Touchless Invoice Processing — The fully automated handling of an invoice from receipt to payment with no manual intervention.
Traceability — The ability to track a product's journey and components through the supply chain from origin to delivery.
Two-Way Matching — An invoice check comparing only the purchase order and the invoice, used where a goods receipt is not applicable (e.g. services).

U

UNSPSC — The United Nations Standard Products and Services Code — a global taxonomy for classifying products and services.

V

Value Analysis — A systematic review of a product or service to improve its value — cutting cost without losing function, or adding function without adding cost.
Value Creation — Procurement's contribution to organisational value beyond price savings — including quality, innovation, risk reduction and speed.
Vendor — A seller of goods or services; in procurement, usually a synonym for supplier.
Vendor Lock-In — A situation where switching away from a supplier is difficult or costly, reducing the buyer's leverage and choice.
Vendor Master Data — The authoritative record of each supplier's key details — legal name, addresses, tax IDs, bank and payment terms.
Vendor-Managed Inventory (VMI) — An arrangement where the supplier monitors and replenishes the buyer's stock of its items, taking responsibility for availability.

W

Warehouse Management — The control of storage operations — receiving, put-away, picking, packing and dispatch — to move goods efficiently and accurately.
Warranty — A supplier's assurance that goods or services will meet defined standards, with a remedy if they do not.
Weighted Scoring — An evaluation method that multiplies each supplier's score on a criterion by that criterion's weight, then sums the results into a single comparable total.
Workflow Automation — The automated routing of tasks, approvals and notifications according to predefined business rules.
Working Capital — The money tied up in day-to-day operations — broadly current assets (inventory, receivables) minus current liabilities (payables).
Write-Off — The accounting removal of an asset's value when it can no longer be recovered, such as obsolete or damaged stock.

Frequently Asked Questions

What is a procurement glossary?

A procurement glossary is a reference list that defines the terminology used throughout the procurement and purchasing process — sourcing and RFx, procure-to-pay, contracts, supplier management, spend analytics, inventory, and finance. It gives buyers, finance teams and suppliers a shared, unambiguous vocabulary.

How is this glossary organised?

Every term has its own page with a plain-language definition, a longer explanation, a worked example, and links to related terms and concepts. You can browse the full list alphabetically (A–Z) or narrow it down by category, such as Sourcing & RFx, Procure-to-Pay, or Spend & Analytics.

Are these definitions specific to any one system?

No. The definitions are vendor-neutral and describe standard procurement concepts as they are used across the industry. Where a concept maps to a capability on a modern B2B procurement platform, the term links out to the relevant concept guide or solution — but the definition itself is general.

Explore more

Procurement concepts explained | Procurement solutions | Free tools & templates