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Best practices6 min read

Published October 18, 2026

Buen Fin 2026: prep checklist for your online store

A dated checklist to get your store ready for Buen Fin 2026, Mexico's Black Friday (Nov 13-17): inventory, offers, WhatsApp orders, delivery.

MiniTiendAI team · Reviewed

Buen Fin 2026 dates and the prep calendar

Buen Fin 2026 takes place from Friday November 13 to Tuesday November 17 — five official days of coordinated discounts across Mexico, supervised by the consumer protection agency PROFECO. Merchant registration on the official event site is free, opens September 8 and closes November 12; registering gets you listed in the official directory and makes electronic-method purchases at your store eligible for the tax agency's raffle. Even without registration you can run offers those days.

The date that matters most for your store is your publish date: whatever you put online in the first week of November is what search engines manage to index and what your customers save before Friday the 13th. This checklist splits the four previous weeks into blocks with concrete deliverables. If you start late, cut week 1 — never cut the rehearsal.

  • Week of October 20–26: inventory counted and offers chosen
  • Week of October 27–November 2: offers priced with real margin, catalog photographed
  • Week of November 3–9: catalog published and contacts notified
  • November 10–12: full order rehearsal and pre-written replies
  • November 13–17: daily Buen Fin routine

Week of October 20–26: inventory and the numbers

Start by counting what you actually have, not what you think you have. Go through stock product by product and split it into three groups: what goes on offer (slow movers or clearance), what keeps its price with something extra thrown in (delivery, a sample, half off a second item), and what stays out of the promotion because the margin can't take it. Then run the real-margin math on every offer: sale price minus cost, packaging, delivery, and fees. If the subtraction comes out negative, it's not an offer, it's a loss.

  • Physical stock count, not a guess from memory
  • A maximum number of units per offer: the ones you can restock and deliver without drowning
  • Set aside the offer inventory so it doesn't sell at full price before the event
  • Flag slow movers worth clearing even at a thinner margin

Week of October 27–November 2: offers and catalog

With last week's numbers, define each offer's structure and build the catalog. Structured offers beat flat discounts: half off a second item, bundles by budget, or free shipping above a threshold. Every product on offer needs a real photo, a description covering size or color where relevant, the regular price and the sale price both visible; the regular price must be genuine, because inflating it before the discount is exactly what consumer-protection rules penalize.

  • 10 to 20 products on offer: more dilutes attention and complicates stock
  • Clean-background photo with decent light, phone is fine, no banners burned into the image
  • Regular price and sale price visible on the same product card
  • A short description answering the three usual doubts: what's included, how it ships, how to pay

Week of November 3–9: publishing and WhatsApp orders

Publish the catalog with a cart and a WhatsApp order button, so each order arrives assembled (products, quantities, total) instead of a bare 'how much is this?'. Before spreading the link, place one complete order yourself, end to end: select, send, confirm, and collect in rehearsal mode. Then announce it in your WhatsApp status and broadcast lists without asking for a sale yet — the goal this week is to get the link saved.

Write three short replies you will reuse all weekend: order confirmation with total and delivery method, estimated delivery time, and what happens if a product sells out. Answering in minutes is the difference between closing the sale and handing it to whoever replies first.

November 10–12: delivery, payment, and the full rehearsal

Lock the logistics before the starting gun. Define delivery zones and time slots for each day of the event, decide how you take money (bank transfer, cash on delivery, or a payment link), and set your deposit rule for large or reserved orders. If you accept transfer receipts as photos, state up front that delivery happens once the payment clears, not when the screenshot arrives.

  • Delivery zones and time slots written down, per event day
  • Packaging, labels, and change ready for the expected volume
  • One order log for everything: name, product, amount, payment status
  • A complete rehearsal: from click to confirmation message

November 13–17: the daily routine

During the event the work is routine: check stock, reply fast, and keep track of who paid. Open and close each day with the same five-minute pass and adjust as you go — if something sold out, mark it in the catalog that same day so you stop taking orders for what you no longer have.

  • Day start: check offer stock and mark sold-out items in the catalog
  • Reply to every order within minutes using the prepared answers
  • Day end: log orders, pending payments, and tomorrow's committed deliveries
  • If an offer hasn't moved in two days, reposition it or clear it out; don't let it die quietly

For Black Friday and Cyber Monday readers

Buen Fin is Mexico's Black Friday, and the playbook travels. For Black Friday (November 27) and Cyber Monday (November 30), shift the same calendar: inventory and offers four weeks out (week of October 26), catalog live by mid-November, a full order rehearsal the week of November 16, and the same daily routine over the Black Friday weekend. The Wednesday after, collect your numbers — what sold, which questions repeated, which offer moved nothing — and feed December's plan with them.

One Buen Fin habit worth copying everywhere: publish early. Search engines take weeks to index new pages, and shoppers start comparing prices weeks before the event. A catalog that goes live the day before is a catalog published for nobody.

Sources and product guides

Frequently asked questions

What are the official Buen Fin 2026 dates?

Friday November 13 through Tuesday November 17, 2026, per the official event site. Five days, with Monday the 16th a public holiday in Mexico, which usually stretches the buying window a few days longer.

Do I need to register to participate in Buen Fin?

Official registration is free and runs September 8 to November 12 at elbuenfin.org; it lists you in the event directory and makes electronic purchases at your store eligible for the tax agency's raffle. Without registration you can still run offers — you just won't appear in official directories.

How much inventory should I set aside?

A practical rule: set aside what you can restock and deliver without drowning. As a starting estimate, take one good weekend of sales and add a third; adjust on the second day of the event based on what actually moves.

When should I publish my Black Friday or Buen Fin catalog?

Between the last week of October and the first week of November. Shoppers start comparing in late October and search engines take weeks to index new content; publishing the day before the event means publishing for nobody.

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