Start with the decision you need to make
A supplier change begins with a business question: what should the next manufacturing arrangement do better? This OEM2EMS checklist organizes that conversation before you request introductions, compare proposals or commit to a transfer.
Use it as a working brief. For every question, record the answer, the evidence still needed and the person responsible for the next action. An unanswered question is an item to resolve, not a reason to assume the supplier can meet the requirement.
1. Write a one-page transfer brief
For example: “We need to evaluate an additional assembly partner for one product family while keeping the current supplier for existing orders.” This gives an introduction a more useful purpose than a general request for a cheaper factory.
- Name the product families and manufacturing activities you are considering moving. Separate confirmed scope from options still under discussion.
- Describe the problem to solve in measurable terms, such as a capacity requirement or a delivery objective.
- List the boundaries: target location, spending limits, required capabilities and dates that cannot move.
- Choose the immediate decision: explore alternatives, request quotations, approve an evaluation or authorize a transfer.
2. Make the introduction brief safe and useful
OEM2EMS can use an agreed brief to discuss potential fit and coordinate suitable conversations. An introduction is a starting point for evaluation, not approval of a supplier.
- Prepare a non-confidential product description that explains the processes and support you need.
- Identify which technical details can be shared initially and who can authorize further disclosure.
- State whether you need local sourcing support, supplier discussions, RFQ preparation or transfer coordination.
- List the questions you want a prospective partner to answer before either side invests in a detailed quotation.
3. Evaluate fit against your own requirements
Keep a short comparison record for every candidate. Use the same questions so that a persuasive presentation does not outweigh an unresolved project requirement.
- Ask the prospective supplier to explain how it would handle your expected volumes, product complexity and support needs.
- Request relevant evidence for each essential capability instead of relying on a general company presentation.
- Record what is performed at the proposed site and what depends on another organization.
- Distinguish confirmed capability, capability requiring development and requirements the supplier cannot meet.
4. Make each proposal comparable
A quotation is easier to evaluate when you can explain both what it buys and what your team must still provide. Resolve differences in scope before negotiating price.
- Give candidates the same agreed scope and identify any information that remains provisional.
- Separate recurring prices from evaluation, setup and transition charges.
- Ask each supplier to list exclusions, customer responsibilities and conditions that could change price or timing.
- Record the commercial effect of changing volumes, delivery arrangements or the division of sourcing responsibilities.
5. Use decision gates before making commitments
Agree who can approve each step and what evidence that person needs. The following is an OEM2EMS discussion worksheet; adapt the gates to your project and your team’s technical requirements.
| Decision gate | Question to close | Record to keep |
|---|---|---|
| Start supplier evaluation | Does this candidate address our essential requirements? | Fit assessment and open questions |
| Authorize paid evaluation | Are scope, costs and responsibilities agreed? | Approved evaluation brief |
| Accept evaluation results | Has our team reviewed the results against its agreed criteria? | Decision and unresolved-item record |
| Commit to a transfer | Are commercial terms and the transition approach approved? | Named approvals and action plan |
| Change ongoing supply arrangements | Are the consequences for existing orders and customers understood? | Approved change and communication record |
6. Keep one action and decision log
Avoid scattering commitments across messages and meetings. Maintain one record that shows the question, its owner, the next action, the due date and the decision made.
If an assumption changes, identify which quotation, evaluation result or approval needs to be reconsidered. Do not treat an earlier decision as approval of a materially different arrangement.
- Separate facts from estimates and supplier proposals.
- Give each unresolved issue an owner and a next action.
- Record decisions in writing and share them with the people affected.
- Keep supplier selection and technical acceptance with the authorized people in your organization.
OEM2EMS readiness checklist
- We can explain why we are considering a supplier change.
- We have defined the scope and immediate decision required.
- We have a non-confidential brief for initial discussions.
- We know who can approve access to additional information.
- We have recorded supplier-fit evidence and unanswered questions.
- We can compare proposals on the same scope.
- We have agreed who approves each evaluation and commitment.
- We have considered existing orders and customer commitments.
- We have one action log with named owners.
- We know the specific support we want from OEM2EMS.
Discuss your next step with OEM2EMS
Bring your brief and the most important unanswered questions. OEM2EMS can help clarify the sourcing requirement, prepare supplier conversations and coordinate introductions or agreed follow-up.
Any paid support is scoped separately before work begins. Your team remains responsible for technical qualification, supplier selection and commercial approvals.

