Procurement glossary: 60 terms in plain language

Procurement uses a lot of short names and acronyms. This glossary explains sixty of them in a sentence or two, so you can follow a vendor demo or a finance meeting without guessing.

By Procurement VMS Editorial TeamLast updated October 15, 2026

3
3-way match: Checking that the purchase order, goods receipt and supplier invoice agree before payment.
A
Accounts payable: The money a company owes suppliers, and the team that pays it.
Auto renewal: A contract clause that renews the agreement unless notice is given by a set date.
B
Bid: A supplier offer in response to a request for quotation or proposal.
Bill of materials: A list of the parts and quantities needed to make a product.
Blanket purchase order: An order covering repeat purchases from one supplier up to an agreed total.
C
Catalog: A list of approved items and prices that staff can order from.
Category management: Managing groups of similar spend with a plan for each group.
CLM: Contract lifecycle management. Software that manages contracts from request to renewal.
Contingent workforce: Temporary workers and contractors who are not permanent employees.
Cost avoidance: A price rise that was prevented. It is not a reduction in what you spent.
Cost reduction: A real decrease in price or total cost compared with a baseline.
D
Direct spend: Spend on goods that go into a product the company sells.
Due diligence: Checks made on a supplier before and during a relationship.
E
eProcurement: Buying through online systems with catalogs and approvals.
ERP: Enterprise resource planning. The main system for finance and operations data.
ESG: Environmental, social and governance measures of how a company operates.
G
Goods receipt: A record that goods arrived, used as evidence for payment.
I
Indirect spend: Spend on goods and services that support the business, such as software and travel.
Invoice: A supplier bill requesting payment for goods or services.
K
KPI: Key performance indicator. A number used to track progress.
L
Landed cost: The full cost of a product including freight, duties and fees.
Lead time: The time between placing an order and receiving it.
M
Maverick spend: Purchases made outside the approved process or supplier list.
MSA: Master service agreement. A framework contract that sets general terms for future work.
MSP: Managed service provider. A firm that runs a program such as contingent labor for a client.
N
Net terms: Payment terms such as net 30, meaning payment is due thirty days after the invoice.
O
Onboarding: Collecting information and approvals so a new supplier can be used and paid.
P
P2P: Procure to pay. The process from request to payment.
Punchout: A link from a buyer system to a supplier website, returning a cart for approval.
Purchase order: A document sent to a supplier stating what is ordered, at what price and terms.
Purchase requisition: An internal request to buy something, sent for approval.
R
RACI: A chart showing who is responsible, accountable, consulted and informed.
Reverse auction: A live event where suppliers lower their prices to win business.
RFI: Request for information. Used to learn what suppliers can offer.
RFP: Request for proposal. Asks suppliers how they would solve a problem and at what cost.
RFQ: Request for quotation. Asks suppliers to price a defined need.
Risk tiering: Sorting suppliers by how much harm a failure would cause.
S
S2P: Source to pay. The cycle from finding suppliers to paying them.
Savings pipeline: A tracked list of savings ideas from first idea to booked saving.
SLA: Service level agreement. A promise about service quality or speed.
SOC 2: A report on a service provider security and privacy controls.
Sole source: A single supplier for an item with no ready alternative.
Sourcing event: A structured process to get bids and choose a supplier.
Spend analysis: Collecting and classifying spend data to see where money goes.
Spend under management: The share of spend covered by a managed process.
Statement of work: A document describing the work, deliverables and timeline for a service.
Strategic sourcing: Choosing suppliers for a category using total cost and risk.
Supplier diversity: A program to include small and underrepresented businesses in your supplier base.
Supplier master: The core record of each supplier, including legal name, tax ID and bank details.
Supplier relationship management: Working with key suppliers on plans, reviews and improvement.
Supplier scorecard: A regular report on how a supplier performs against agreed measures.
T
Tail spend: The many small purchases from many suppliers that add up to a small share of spend.
Third party risk: Risk that comes from vendors, partners and other outside parties.
Three-bid rule: A policy requiring several quotes above a set value.
Total cost of ownership: All costs of using a product over its life, not only the purchase price.
U
Unit price: The price of one item.
V
Vendor: A seller of goods or services. Often used the same way as supplier.
VMS: Vendor management system, or in staffing, a contingent workforce management system.
Volume discount: A lower price for larger quantities.
W
Work order: A document that authorizes specific work or maintenance.

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Why do vendors use different words for the same thing?

Vendors name features to stand apart. Ask each vendor to define a term in the demo.

Is vendor the same as supplier?

Often yes. Some companies use vendor for any seller and supplier for goods providers.

Procurement glossary: 60 terms in plain language

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