The calm merchant's BFCM checklist.

BFCM rewards preparation and punishes improvisation. The stores that have a good November decided everything in September; the stores that have a bad one were still choosing discounts on the Tuesday before. This is the whole checklist, in the order the decisions actually need making.

Start with the discount you can afford

A discount is a claim against your gross margin, and the math is unforgiving: at a 45% margin, a 25% discount means every sale earns less than half its usual profit — you need roughly 2.25× the volume just to stand still. Run your own numbers on the BFCM page’s calculator before promising anything to your email list.

Decide now: sitewide or curated? Curated sales protect margin and feel more deliberate; sitewide sales are simpler to communicate. Either is fine. Choosing on the day is not.

Inventory: the math of not running out

Take your best sellers, their daily velocity, and your supplier’s lead time. If reordering takes six weeks, your November stock is a September decision. An out-of-stock bestseller during peak week is the most expensive silence in retail — the sales are lost, and the ad platforms lose their strongest signal at the worst moment.

• Reorder points set for peak velocity, not normal velocity
• A back-in-stock notification list on anything that might sell through
• Honest sold-out states on the storefront, never hidden products

Site, speed and the checkout path

Freeze theme changes a week out. Test the checkout on a phone, on cellular, with a discount code. Every surprise at checkout feeds cart abandonment, and abandonment during peak traffic is compounding waste. If you schedule theme changes for the sale, schedule the rollback too.

Email is the boring goldmine

The list you built all year is the cheapest traffic you will ever have. Three sends beat ten: an early-access note to your best customers, the opening announcement, and a final-hours reminder. Write them in October. Nothing written on Black Friday reads calm.

The week itself

Watch three numbers daily: sessions, conversion rate, and margin after discounts — not just revenue. Revenue is the loudest number and the least informative one during a sale. Keep a one-line log of what you changed and when, so next year’s checklist writes itself.

After the dust

Judge the season year-over-year, not month-over-month — November always beats October. Then look at December’s repeat behaviour: the discount buyers who come back at full price were the real prize; the ones who never return were the cost of the party.