AI Supply Chain BriefSupplier negotiation plan: a filled-in one-page example (BATNA, walk-away and trades) plus an AI prompt
Short answerA supplier negotiation plan fits on one page: your objective, your BATNA (what you will actually do if there's no deal), costed per unit, a walk-away price derived from that BATNA, a target backed by evidence, an opening position, the trades you can give and get, and the supplier's likely pressures. Put numbers on every line before the meeting.
Fictional exampleExample Pump Co., Supplier A, Supplier B and every price below are made up for illustration. Don't paste real NDA pricing or export-controlled data into an AI tool; see the data-safety checklist.
The short negotiation-plan prompt is in ChatGPT prompts for procurement (#p4). This page shows a finished plan with numbers: how to cost the BATNA, set the walk-away and target, estimate the ZOPA and price the trades before the meeting.
What are BATNA, walk-away and ZOPA, in buyer terms?
- BATNA (Best Alternative to a Negotiated Agreement) is what you will actually do if there is no deal. Harvard's Program on Negotiation puts it in plain terms: "it is what you will do if you do not reach a deal" (PON; the idea comes from Fisher, Ury and Patton, Getting to Yes).
- Walk-away is the worst price (or package) you will still accept. For a buyer, it usually equals the cost per unit of your BATNA.
- ZOPA (zone of possible agreement) is the overlap between your walk-away and the supplier's floor. The supplier's floor is an estimate—label it that way.
How do you put a number on your BATNA?
"We can switch" is not a BATNA. Turn the alternative into a per-unit cost: the alternate price, qualification or PPAP cost, transition time and the risk you're willing to pay to avoid. That number becomes your walk-away.
Worked example: a fastener renewal with a 6% increase ask
Example Pump Co. buys a fastener family from incumbent Supplier A: 400,000 pcs/yr at $2.50 = $1,000,000/yr. Supplier A asks for +6% ($2.65), which is +$60,000/yr.
| Plan line | Value (fictional) | How it was worked out |
|---|---|---|
| Objective | Keep supply continuity; land as close to +2% as possible, never above the walk-away | — |
| BATNA | Move 100% to qualified Supplier B at $2.58 + $12,000 one-time PPAP; 10 weeks to switch | 400,000 × $2.58 + $12,000 = $1,044,000 → $2.61/pc |
| Walk-away | $2.61 | Any price above the BATNA cost per piece is worse than switching |
| Target | $2.55 (+2%) | Steel wire ≈ 40% of price (fictional should-cost); steel index rose 5% (fictional) → 0.40 × 5% = 2% |
| Opening | $2.50 flat for 12 months, then a steel index clause | Leaves room to trade |
| Supplier's likely floor (estimate) | ~$2.53–$2.55 | Labeled as a guess |
| Estimated ZOPA | $2.53–$2.61 | Supplier floor estimate to our walk-away |
| Trades we can give | 24-month term; quarterly 6-month forecast; keep net 45 instead of net 60 | See priced trade below |
| Trades we want | Index clause both ways; 4-week lead time cap; no expedite fees inside forecast | — |
| Hardest questions | "Why not Supplier B already?" "Can you commit volume?" "Will you accept an index that can go up?" | Prepare the answers |
Pricing a trade: keeping net 45 rather than pushing to net 60 gives up 15 days of cash. On $1,024,000 at a fictional 8% cost of capital, that is $1,024,000 × 8% × 15/365 ≈ $3,367/yr—small next to the price, so it is a cheap trade to give.
Fictional outcome: $2.56 with a 24-month term and a two-way steel index → 400,000 × $2.56 = $1,024,000. That is $36,000/yr below the ask and $20,000/yr below the BATNA. It sits inside the ZOPA and below the walk-away.
The walk-away comes from the BATNA, not from a feeling. If Supplier B didn't exist, the walk-away would be different. The target comes from evidence (cost driver × index move)—see the should-cost model example for building that driver. For responding to an increase letter once it arrives, see how to respond to a supplier price increase.
The one-page plan (blank template)
Download the blank negotiation plan (CSV), pre-filled with the fictional Example Pump Co. numbers above so you can see the layout. Columns: line, value, evidence/source, assumption? (Y/N), owner. Public-sector buyers can also look at Queensland Government's sourcing negotiation plan template as another example of a written plan in practice.
Pressure-test the plan with AI
This prompt checks a finished plan rather than drafting one from scratch (that is what #p4 does). For rehearsal, use the role-play prompt at #p6; for price-increase pushback wording, see #p5.
You are a procurement negotiation coach. Below is my one-page plan for a supplier renewal [PASTE TABLE]. Using only these numbers: (1) recompute the BATNA cost per unit and confirm the walk-away is consistent with it; (2) check that the target is supported by the evidence listed, and flag any line that is an assumption; (3) for each trade, estimate its value to us and to the supplier, and show the math; (4) list the 3 questions the supplier is most likely to ask and a one-sentence answer for each; (5) tell me which line in my plan is weakest and why. Do not invent market data or the supplier's costs. Ask me if something is missing.
What to check: redo the BATNA math by hand; confirm Supplier B is actually qualified (or include the qualification time); make sure the walk-away has your manager's sign-off; don't paste confidential pricing your AI policy doesn't allow.
After the meeting
Send a short recap of what was agreed and what is still open. The kit's Negotiations Prep section has a post-negotiation recap email prompt for that. For tools that negotiate on your behalf, see the autonomous supplier negotiation use case—this page stays on the plan you bring into the room.
FAQ
What is a negotiation plan template?
A short written plan you fill in before a supplier meeting: objective, BATNA, walk-away, target, opening, trades and hard questions. The CSV on this page is a blank you can copy.
What's an example of BATNA in supplier negotiation?
In the example on this page, the BATNA is switching the fastener family to a qualified Supplier B at $2.58 plus $12,000 of PPAP cost, which works out to $2.61 per piece. That number becomes the walk-away.
What's the difference between BATNA and ZOPA?
BATNA is what you will do if there is no deal. ZOPA is the range where a deal is still possible—between your walk-away and the supplier's floor. You usually know your BATNA; you estimate theirs.
How do you calculate a walk-away price?
Cost your BATNA per unit (alternate price, qualification, transition) and use that as the walk-away, adjusted for any risk premium you are willing to pay to avoid switching.
Can ChatGPT help prepare for a negotiation?
Yes, to check math, structure the plan and rehearse answers. It should not set your walk-away for you. Use the pressure-test prompt on this page, the short draft prompt at #p4, and the role-play at #p6.
What should be on a negotiation preparation checklist?
Objective, costed BATNA, walk-away with manager sign-off, evidence-backed target, opening position, priced trades, estimated supplier floor, hardest questions with answers, and a data-safety check on anything you paste into AI.
