Prepare an RFQ that leads to useful supplier conversations.

A clear request for quotation helps suppliers explain what they can offer—and makes their responses easier to compare.

OEM2EMS field notes · General educational guidance. Adapt these questions to your product and seek the appropriate engineering, quality and regulatory advice.

Explain the project before asking for a price

An RFQ is more useful when it explains the problem the supplier is being asked to solve. Describe the product, its intended use, the development stage and what you want the supplier to deliver. State whether you need a feasibility discussion, a budgetary estimate or a quotation against a controlled design.

If important details are still uncertain, say so. A budgetary estimate based on assumptions should not be treated as a production commitment.

Prepare a controlled information pack

Provide a document list and revision identifiers so every bidder works from the same information.
Define the scope: component sourcing, PCB assembly, mechanical parts, box build, firmware loading, testing, packaging or logistics.
State pilot quantities, volume scenarios and your intended schedule. Identify which dates are goals and which are firm requirements.
Describe acceptance criteria and the applicable product requirements you have identified with qualified advisers.
List the files that can be shared after confidentiality and access arrangements are agreed. Do not upload confidential designs to a public discussion.

Ask suppliers to make assumptions visible

Request a response that separates material costs, conversion or assembly costs, tooling, test fixtures and other one-time charges. Ask for minimum order quantities, lead-time assumptions, payment terms, quotation validity and exclusions.

For sourced electronic components, ask how the supplier handles approved sources, traceability, substitutions, lifecycle risk and unavailable parts. Require an approval process for changes rather than allowing silent substitutions.

Compare and clarify before negotiating

Build a comparison table with one column per supplier. Mark missing answers and differences in scope before ranking prices. Where one quotation includes testing and another excludes it, resolve that difference first.

Keep a written clarification log. Send revisions consistently and request an updated quotation when a requirement changes materially. This creates a better foundation for the eventual purchase order and manufacturing agreement.

Your next action

Write a short, non-confidential project brief: what you are building, your current stage, expected quantities, required capabilities and the decision you need help making. Bring that brief to your first OEM2EMS conversation.