Sourcing is where cost, quality, and risk all get decided at once — and it's usually the messiest part of a project. Quotes arrive by email in three different formats, comparisons happen in a spreadsheet built from scratch, and six months later nobody can explain why a supplier was chosen. Here's a repeatable way to run supplier sourcing that holds up.
RFI, RFQ, RFP — which one do you need?
The three sourcing documents solve different problems:
- RFI (Request for Information) — early, exploratory. You're mapping the market and seeing who's out there.
- RFQ (Request for Quote) — you know exactly what you need and want comparable prices for it.
- RFP (Request for Proposal) — the need is complex or open-ended, and you want suppliers to propose how they'd solve it, not just quote a price.
Most day-to-day sourcing is an RFQ problem: a clear spec, several suppliers, and the need to compare fairly.
A repeatable sourcing workflow
- Define the need precisely. A vague spec produces un-comparable quotes. Nail down quantities, standards, delivery, and terms before you ask anyone.
- Discover and shortlist suppliers. Cast wider than your usual two vendors — the point of sourcing is to find the right supplier, not re-confirm the convenient one.
- Issue one clear RFQ to all of them. Same scope, same format, same deadline. This is what makes the responses comparable.
- Compare on total cost, not sticker price (more below).
- Qualify the front-runners before you commit.
- Decide — and record why. The decision is only as strong as the trail behind it.
Compare on total cost, not the sticker price
The lowest quote is rarely the cheapest supplier. Total cost of ownership pulls in the things the headline number hides:
Lead time, payment terms, minimum orders, quality and defect rates, switching costs, and the risk of the supplier not delivering at all. A quote that's 5% cheaper but two weeks slower can cost far more than it saves.
Score suppliers against the criteria that actually matter to the job, weighted — not on price alone.
Qualify before you commit
Shortlisting on price gets you a cheap quote; qualification gets you a supplier who can deliver. Before signing, check the boring, decisive things: financial stability, capacity to fulfil, relevant certifications and compliance, and references from work like yours. A quick risk check here prevents the expensive surprise later.
Keep a decision you can defend
Sourcing decisions get questioned — by finance, by an auditor, by a stakeholder who preferred a different vendor. If your reasoning lives in a since-deleted email thread, you have a problem. A clear record of who you considered, what they quoted, how you scored them, and why you chose is what turns a judgement call into a defensible decision.
Bringing supplier discovery, side-by-side RFQ comparison, and vendor qualification into one place — with the paper trail built in — is exactly what we're building SourceWright for. It's in development; join the waitlist if sourcing is your world.