The Black Friday checklist for stores that fulfill through suppliers
A week-by-week peak season plan for Shopify retailers and resellers: stock checks, supplier cutoffs, exception rules and what to do once the rush is over.
Black Friday falls on November 27 this year and Cyber Monday on November 30. If you fulfill through your own shelves and a group of suppliers, your peak does not depend only on your own team. It depends on every supplier answering quickly, on the same days, while they are also busy.
The usual cause of a bad peak is a small problem that was tolerable at normal volume and turned serious under pressure. Here is how to find those problems while there is still time.
- Nov 9–15Check stock and suppliers
- Nov 16–22Set the rules
- Nov 23–26Freeze changes and test
- Nov 27–30Peak: watch exceptions
- Dec 1 onwardReconcile and review
Dates for 2026. Black Friday is November 27, and Cyber Monday is November 30.
This week: find out what is really true
List the 20 products you expect to sell most. Confirm stock with each supplier, or on your own shelf, against what your store shows. A mismatch now is a batch of cancelled orders later.
What is your last shipping cutoff each day? What are your hours over the holiday weekend? How many orders a day can you handle? Who do we contact when something goes wrong?
If a product has only one source, you need to know now, and not on Friday morning. Decide who else can fulfill it, or what you will say if it sells out.
Any sellable return sitting in the back is stock you have already paid for. Inspect it and get it listed before the rush arrives.
Illustrative: a supplier holding 200 units who can pack 40 orders a day, over the four days of peak.
Next week: decide the rules
Peak is a bad time for judgment calls, so make them now and write them down where the whole team can see them.
| Decision | Make it now |
|---|---|
| Supplier response window | How long before a silent supplier loses the order? Consider shortening it. |
| Oversell procedure | Which order is kept, who contacts the customer, and how quickly? |
| Delivery promise | What can you honestly promise per supplier during peak? |
| Discount limits | What is the lowest margin any promotion is allowed to reach? |
| Sell-out behavior | Hide the product, show sold out, or offer an alternative? |
| Last-order date | The date you stop promising delivery before the holidays. |
Also check your promotions against your actual margin. A 25% code stacked on an item with a thin supplier margin, along with free shipping, can turn your busiest weekend into your least profitable one. Test your largest discount on your lowest-margin product before the code goes live.
Launch week: reduce what can change
- Freeze changes. Avoid new apps, theme edits or new suppliers in the final days. We would not move a live store onto new software right before Black Friday, and that includes ours.
- Place a test order. Follow one order all the way from checkout to supplier confirmation to tracking.
- Set out the coverage. Agree on who watches exceptions each day, including Saturday and Sunday.
- Prepare your messages. Have delay and cancellation wording ready, so nobody writes them under pressure.
During peak: watch exceptions
Sales totals feel great, but they will not warn you about anything. Look at these every few hours instead:
- Orders without a supplier confirmation
- Orders past their response window
- Declines by supplier
- Orders close to missing their delivery promise
- Stock on your best sellers
The week after: do the work that pays off next year
Check supplier statements while the orders are fresh, since peak weeks are when cancelled orders and missed credits pile up. Get your returns inspected and back on sale quickly. Write down which suppliers held up, what broke and which promotions lost money. That one page is the most valuable thing you can have next October.
How StackKnack helps
If you already run on StackKnack, much of this list is covered by the daily workflow.
- Relay moves an order to the next eligible source when a supplier declines or misses the response window, and offers your own returns first.
- Relay's Monday statements give you one view per supplier of what shipped in peak week.
- Console keeps your Shopify, eBay and Clover stock tied to the same unit records, which matters most on the busiest days.
- Pulse helps you find aged stock worth moving, within the pricing limits you set.
If you are not on StackKnack, use this list as written, and get through peak on what you know. Then, in the quiet weeks of January, talk to us about the parts of this checklist you would rather not do by hand next time.