Knowing the theory of procurement is one thing; running an actual purchase from first request to final payment is another. This guide is the practical version. It walks through procurement one step at a time, with what to do at each stage, who needs to be involved, and a tip to keep things moving. It finishes with a quick checklist you can reuse and a short list of mistakes to avoid, so you can follow along whether you are buying a single laptop or setting up buying for a growing team.
Key takeaways
- Every purchase follows the same six steps, from defining the need to paying the invoice.
- Each step has a clear owner; problems usually start when no one is sure who does what.
- A written requirement and an approved budget up front prevent most disputes later.
- Matching the invoice to the order and receipt before paying is the control that stops overspend.
How to run a purchase from start to finish
Procurement can sound complicated, but at its heart it is a repeatable sequence. You work out what you need, get permission to spend, find a supplier, agree a price, place the order, receive the goods and pay. Do those things in order, with the right people signing off at the right points, and you have run a clean procurement cycle. This guide is a companion to our broader procurement process guide, which explains the why behind each stage; here the focus is on the how, step by step.
Before diving into the detail, it helps to see the whole journey at a glance. The table below lays out the six steps, what happens at each, and who owns it. Keep it nearby as a map while you read the rest of the guide.
| Step | What happens | Who owns it |
|---|---|---|
| 1. Identify the need | Define what is needed, how much and by when | Requester |
| 2. Approve and budget | Confirm the money and sign off the request | Budget holder |
| 3. Source suppliers | Find and shortlist potential vendors | Buyer |
| 4. Quote and negotiate | Get prices, compare and agree terms | Buyer |
| 5. Raise the order | Issue a purchase order to the supplier | Buyer |
| 6. Receive and pay | Check the goods, match the invoice and settle | Finance |
If you want to understand where this process sits in the wider discipline before you start, our complete guide to procurement sets out the strategy, roles and metrics around the cycle. With the map in hand, let us walk each step.
Step 1: Identify and define the need
Every purchase begins with a genuine need, and the single most valuable thing you can do is write it down clearly. Vague requests such as "we need some laptops" cause wrong orders, endless back-and-forth and arguments when the goods arrive. A good requirement states exactly what is wanted, the quantity, the specification or standard it must meet, the deadline, and the reason for the purchase. This document is often called a purchase requisition, and it is the thing your approver will judge.
Who is involved: the requester, usually the person or team who will actually use the goods or service. They know the specification best, so they should own this step rather than pushing it onto procurement to guess at.
Tip. Separate the need from the solution. Describe the problem you are solving, not just the product you have in mind. A supplier or buyer can often meet the underlying need more cheaply if the requirement is written in terms of outcomes rather than a specific brand or model.
Step 2: Get approval and confirm the budget
Once the need is written down, it has to be approved before any money is committed. This is the control step that keeps spend inside budget and stops unapproved buying. The approver checks that the purchase is justified, that the budget exists, and that it is being spent on the right things. For larger amounts, approval may need to climb several levels; for small, routine buys it should be quick and light.
Who is involved: the budget holder or line manager, and for bigger commitments, finance or a senior approver. The clearer your approval thresholds, the less time this step wastes.
Approval should be fast for small buys and firm for big ones. If every purchase, no matter how trivial, needs three signatures, people will route around the process entirely. Match the level of scrutiny to the size of the spend, and make the compliant path the quickest one.
Tip. Agree your approval rules once, in writing, and apply them consistently. A simple table of who can approve what, up to which value, removes most of the friction and confusion that slows this step down.
Step 3: Source and shortlist suppliers
With an approved requirement in hand, you can go looking for suppliers. If you already have an approved vendor for this category, sourcing may be as simple as confirming they can still deliver. For new or high-value needs, you cast a wider net: search directories, ask for referrals, review past suppliers and invite a shortlist to bid. The aim is a small, credible set of vendors who can genuinely meet the requirement, not the longest possible list.
For significant or strategic categories, this is where strategic sourcing comes in: you assess suppliers on total value, reliability and risk, not price alone. For routine, low-value items, a lighter touch is fine.
Who is involved: the buyer or procurement specialist, supported by the requester for technical questions about the specification.
Tip. Always keep at least one credible alternative in reserve, even when you have a preferred supplier. A single-source position weakens your negotiating hand and leaves you exposed if that supplier fails or raises prices.
Step 4: Request quotes, negotiate and agree terms
Now you ask your shortlist for prices and compare them properly. A request for quotation sets out your requirement and asks each supplier to price it on the same terms, so you are comparing like with like. For more complex needs, a request for proposal invites suppliers to describe how they would meet the requirement, not just what they charge. Either way, look beyond the headline number to delivery times, payment terms, warranties and total cost.
With quotes in hand, negotiate. Price is the obvious lever, but payment terms, delivery schedules, volume discounts and service levels are all on the table. Once you agree, capture the terms in a contract or a clear written order so both sides know what was promised.
Who is involved: the buyer leads, with the budget holder consulted on any trade-offs that affect cost, and legal or finance involved for larger contracts.
Tip. Never accept the first quote without at least one comparison. Even a second quote you do not intend to use gives you a reference point and strengthens your position in the conversation.
Step 5: Raise the purchase order
With a supplier chosen and terms agreed, you formalise the deal by issuing a purchase order. This is the document you send to the supplier that commits to buying: it lists the items, quantities, agreed prices, delivery details and a unique order number. A purchase order matters for more than tidiness. It becomes a binding record that finance will later match the invoice against, which is how you catch overcharging and mistakes.
This is also the step where running everything in one connected system pays off. When the approved requisition flows straight into a purchase order without re-keying, and the order is visible to everyone who needs it, the whole cycle speeds up. That connected approach is the core idea behind e-procurement, where each step passes context to the next automatically.
Who is involved: the buyer raises and issues the order; the supplier acknowledges and confirms it.
Tip. Only ever order against an approved purchase order, and give every order a unique number. It sounds obvious, but buying first and raising the paperwork later is the habit that quietly breaks budget control.
Step 6: Receive, inspect, match and pay
The final step closes the loop. When the goods or services arrive, someone checks that what turned up matches what was ordered, in the right quantity and condition. This is the goods receipt. Only once delivery is confirmed should the invoice be settled, and only after a three-way match: the invoice, the purchase order and the goods receipt should all agree on what was bought, at what price. If they do not, you have caught a problem before paying for it.
When everything lines up, finance approves the invoice and pays the supplier on the agreed terms. Paying on time protects the relationship and often unlocks early-payment discounts; paying without checking is how money leaks out unnoticed.
Who is involved: whoever receives the goods confirms delivery, and finance runs the match and makes the payment.
Tip. Treat the three-way match as non-negotiable for anything above a trivial value. It is the single most effective control against overpayment, duplicate invoices and quiet price creep.
A quick procurement checklist
Once you have run the steps a few times, this short checklist is all you need to keep a purchase on track. Run down it before you close out any buy:
- The need is written down with quantity, specification and deadline.
- The request is approved by someone with the authority and budget to sign it off.
- At least two suppliers were considered, with quotes compared on the same terms.
- Price, delivery and payment terms were negotiated, not simply accepted.
- A numbered purchase order was issued and acknowledged by the supplier.
- Delivery was checked against the order before the invoice was approved.
- The invoice, order and receipt were matched before payment was released.
None of these steps are difficult on their own. The value comes from doing them in order, every time, so nothing slips through. Procurement is a recognised profession with its own standards, and bodies such as the Chartered Institute of Procurement and Supply build their qualifications around exactly this kind of disciplined, repeatable practice.
Mistakes to avoid and how to start
Most procurement problems are not exotic; they are the same handful of avoidable slips repeated. Watch for these:
- Buying before approval. Placing an order and sorting out the paperwork afterwards breaks budget control and normalises off-process spending.
- A vague requirement. Skipping a clear, written need leads to wrong orders, wasted negotiation and disputes when the goods arrive.
- Only one quote. Accepting the first price with nothing to compare it against almost always means overpaying.
- No purchase order. Ordering by email or phone with no numbered document leaves finance nothing to match the invoice against.
- Paying without checking. Settling an invoice before confirming delivery and matching the order is how duplicate and inflated charges get paid.
- No single owner. When it is unclear who owns each step, requests stall and things fall between the gaps.
The good way to avoid all of these is to make the correct path the easy one. When the steps are connected, approvals are quick, and everyone can see the status of an order, doing procurement properly takes less effort than working around it. That is precisely what a dedicated system is for: bringing requests, approvals, orders, suppliers and payments into one place so spend stays visible and controlled without slowing anyone down.
If you are formalising buying for the first time, do not try to fix everything at once. Pick one common, repeated purchase, run it through these six steps end to end, and refine from there. See how ProcureWave connects the whole cycle, or book a quick demo to walk through it on your own purchases. Get the steps right once, and every purchase after it becomes routine.
Frequently asked questions
What are the main steps in procurement?
The core steps are: identify the need, approve the request and set a budget, source and shortlist suppliers, request quotes and negotiate, raise a purchase order, receive and inspect the goods, then match the invoice and pay. Some teams add supplier review as a final step. For the bigger picture behind these steps, see our procurement process guide.
What is the first step in the procurement process?
Identifying and defining the need. Before anyone contacts a supplier, the requesting team should write down exactly what they want, how much, by when and why. A clear requirement prevents wrong orders, wasted negotiation and disputes later on.
How many steps are there in procurement?
There is no single fixed number. Most models describe between six and eight steps from need to payment. This guide uses six practical steps that cover the full source-to-settle cycle without over-complicating it.
Who is involved in the procurement process?
Typically a requester who raises the need, a budget holder or manager who approves it, a buyer or procurement specialist who sources and negotiates, the supplier, and finance who pays. In small businesses one person may wear several of these hats.
What is the difference between a purchase requisition and a purchase order?
A purchase requisition is an internal request to buy something, used to get approval. A purchase order is the external document sent to the supplier that commits to buying. The requisition comes first and, once approved, becomes a purchase order.
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