Supplier switching checklist: how to change suppliers without breaking service
A switching checklist: parallel ordering, trial periods, operational checks, and a rollback plan if quality slips.
Most switches fail operationally: cheaper invoice but deliveries outside the morning window, short produce, a rep gone after month one. The fix is boring — overlap long enough to see the new supplier under real conditions, test highest-risk items first, pre-write the exit plan with leverage. Done this way it takes four to six weeks and rarely disrupts service.
Before you switch: the checks that decide success
- Delivery logistics: window fits your receiving hours, daily cut-off (many broadliners want orders by 20:00–22:00), coverage every day needed. Mon/Wed/Fri when you need daily means unbudgeted buffer stock.
- Terms beyond unit price: minimum order (often €250–500 for free delivery), fuel surcharges, small-order fees of €10–25, payment at 14 vs 30 days, credit notes.
- Spec match: get sheets, not photos; compare pack sizes, brands, origin with current supply. A 'cheaper' tomato in a smaller pack can cost 8–12% more per kilo.
- References: two from your segment — same volume, same cuisine. Ask about substitutions, out-of-stock frequency, dispute resolution.
A 30-day transition under load
A 90-cover restaurant moves ~€3,200/month of produce to a wholesaler quoting 7% less, as a controlled trial, not same-day cutover.
| Weeks 1–2 | Split order: ~70% old / 30% new | New supplier gets low-risk staples only; log every issue |
|---|---|---|
| Weeks 3–4 | Shift to 30% old / 70% new | High-volume items move over; reject rate tracked daily |
| Week 5 | Decision point: 2 rejections in 4 weeks | Under the 5% trigger — proceed to full switch |
| Week 6 | Cancel old account, keep 1-week buffer | Savings locked: ~€224/month at the quoted rate |
The overlap cost roughly €80 in split deliveries and admin time, and surfaced two labelling issues during the trial, not mid-service.
Running the switch without service failures
- 1Order in parallel. Order with both suppliers. Start the new one at 20–30% of volume on low-risk items and shift share weekly as its record builds. Keep the old account active, above its minimum where possible.
- 2Run a defined trial. Fix a trial window — 30 days is standard — and score each delivery: on time, complete, spec-compliant. Agree in writing what failure means: no penalties; the old relationship stays warm.
- 3Do the operational checks. Receiving confirms the window works. Kitchen tests products in real dishes, not tastings. Finance confirms invoicing, credit notes, and payment terms match the quote. Any failure goes back before volume shifts.
- 4Exit and roll back if needed. If quality slips after cutover, apply the trigger: two consecutive failed deliveries or rejection above 5% reinstates the old order template that day.
FAQ
- How long should I overlap the old and new supplier?
- Two to four weeks by category. Two suffices for stable dry goods. Produce, meat, fish deserve three to four as quality varies with seasons and batches.
- What should trigger a rollback to the old supplier?
- Decide before switching, not mid-crisis. Triggers: two consecutive failed or late deliveries, rejection above 5%, any failure forcing a menu change. Written down, the shift lead executes without debate.
- How do I exit the old supplier cleanly?
- Check contract notice periods — 30 days is typical for broadliners — give written notice, pay the final invoice including rebates, return crates or equipment. Keep relations intact; they may be your fallback next year.
- Can I switch only part of my order to a new supplier?
- Yes, often smarter than a full switch: it keeps accounts above minimums, gives a live price and service benchmark, and limits the blast radius. Many kitchens run two suppliers permanently.
Keep reading
- Compare prices across the suppliers you already use
A fair comparison framework for recurring restaurant products and current suppliers.
- Negotiate supplier prices with data instead of complaints
A practical negotiation script for restaurant suppliers: prepare numbers, present them, close terms.
- Consolidate suppliers without losing leverage
When merging volume with fewer restaurant suppliers helps — and when it quietly costs you money.
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