If you sell online in Latin America, Hot Sale Meta ads and their cousins (El Buen Fin, CyberMonday Argentina, Cyber Day Chile) are your Black Friday, often more than once a year. These are organized national events: an industry body or chamber of commerce sets the dates, runs an official site that lists participating stores, and promotes the event heavily, so millions of shoppers show up at the same time looking for deals. That's a huge opportunity for a small store, and also a crowded auction, a busy ad review queue and a stress test for your website and stock. This playbook explains who runs each event and when, how to plan the weeks before, and what to do on the day when something breaks.
In short: Know which events matter in your country and check the official dates each year on the organizer's site. Do your discount math first, register officially if you want to appear on the event site, and build your ads a week or more in advance so review is done. During the event, check results every few hours, raise budgets in steps on what sells, and have a plan for review delays, rising costs, stock-outs and a site that slows down.
The main online sale events in Latin America
Dates change every year and are announced by each organizer, so treat the timing below as the usual pattern, not a calendar. Always confirm on the official site before you plan.
| Event | Country | Organizer | Usual timing |
|---|---|---|---|
| Hot Sale | Mexico | AMVO (Mexican Online Sales Association) | Late May to early June; around nine days in recent editions |
| El Buen Fin | Mexico | Ministry of Economy with business organizations (CCE, Concanaco Servytur, ANTAD) | Mid November, over several days |
| Hot Sale | Argentina | CACE (Argentine Chamber of E-commerce) | May, about three days |
| CyberMonday | Argentina | CACE | Early November in recent years, about three days |
| Cyber Day | Chile | CCS (Santiago Chamber of Commerce) | Usually around late May or June, about three days |
| CyberMonday | Chile | CCS | Second half of the year |
| Cyber Wow | Peru | IAB Peru | Several editions a year |
A few things these events have in common:
- Official participation means registering with the organizer. Registered stores appear on the event's official site, which sends a lot of traffic. Requirements and fees vary: some events ask for membership in the organizing chamber, others have a free registration with a deadline. Check the organizer's site (for example hotsale.com.mx, elbuenfin.org or cyber.cl) months ahead.
- The event names and logos are controlled by the organizers. If you're not a registered participant, you can still run your own sale on those days, but don't present it as part of the official event or use its logo in your ads.
- Payment plans drive sales. Interest-free installments (meses sin intereses in Mexico, cuotas sin interés in Argentina) are often as important as the discount. If you offer them, say so in the ad.
As this article is published, El Buen Fin is running in Mexico, with Black Friday and Christmas right behind it. For the US-style events, see our Black Friday Meta ads playbook.
The event timeline, step by step
| When | What to do |
|---|---|
| 2 to 3 months before | Check the official dates and the registration deadline; decide whether to register |
| 6 to 8 weeks before | Choose products and offers with your margin; order stock; check purchase tracking |
| 3 to 5 weeks before | Build warm audiences: site visitors, followers, email and WhatsApp lists |
| 2 weeks before | Produce the event creative in several formats |
| 7 to 10 days before | Create campaigns paused or scheduled so Meta's review is done early |
| The days of the event | Check every few hours, raise budgets in steps, react to problems |
| The week after | Count real profit, thank buyers, retarget the near-misses |
Do the discount math before choosing the discount
A discount lowers the most you can pay Meta for each sale. Say you sell a pair of sneakers for $1,200 (in your local currency). They cost you $500, shipping $150 and payment fees about $60 (more if you absorb interest on installment plans). You keep $490 before ads.
| Offer | Price | Kept per sale before ads | Most a sale can cost in ads |
|---|---|---|---|
| No discount | $1,200 | $490 | $490 |
| 15% off | $1,020 | $310 | $310 |
| 30% off | $840 | $130 | $130 |
| 30% off plus absorbed installment interest | $840 | lower still | lower still |
Numbers are hypothetical, but the pattern is real: deep discounts plus absorbed financing costs can leave almost nothing for ads. Our guide to break-even cost per sale shows the full calculation.
Build and submit ads early
Meta reviews every new ad and re-reviews ads after significant edits. During big events, many advertisers launch at once. Create your event campaigns 7 to 10 days ahead, scheduled to start on day one or left paused, and prepare backup ads for each offer. Plan separate ads for the last day ("ends tonight") instead of editing live ads on the day. If an ad gets rejected, see our guide to rejected Meta ads.
Warm up your audience
During the event, people who already know your store tend to buy faster than strangers. In the weeks before, run regular ads to grow site visitors and followers, and invite people to join your email or WhatsApp list for "early access to our Hot Sale deals". Then target those warm audiences on day one.
Budget planning for a multi-day event
These events last from three days to over a week, and demand is usually strongest at the start and toward the close. A hypothetical plan for a store that normally spends $500 a day in local currency on a three-day event:
| Day | Budget (hypothetical) | Focus |
|---|---|---|
| 2 days before | $500 | Teaser to warm audiences: "starts Monday" |
| Day 1 | $1,000 | All offers, warm and new audiences |
| Day 2 | $800 | Shift budget to the best ads and products |
| Day 3 (last day) | $1,000 | Retargeting plus "last day" ads |
| Day after | $300 | Thank-you to buyers, exclude them from sale ads |
Raise each step only if the cost per sale is under the limit from your discount math. Large sudden jumps can push ad sets back into the learning phase, so moderate steps on campaigns that are already selling are safer than doubling everything at once.
What can go wrong during the event, and what to do
| Problem | What you'll see | What to do |
|---|---|---|
| Ads stuck in review | "In review" for hours on day one | Turn on the backup ads you prepared; don't keep editing the stuck one |
| Cost per sale rising | Spend up, sales flat | Find the weak ad set and pause it; move budget to retargeting and best sellers; see cost per sale spikes |
| Stock running out | Sold-out product still advertised | Pause those ads immediately and promote an alternative |
| Website slow or down | Clicks but no carts or payments | Pause campaigns until it's fixed; you still pay for clicks to a broken page |
| Payment gateway errors | Carts but failed payments | Check with your payment provider; mention alternative payment methods in ads |
| Ad payment declined | Ads stopped, billing notice | Add a backup payment method before the event; see Meta ads payment failed |
A hypothetical scenario: It's the first night of Hot Sale. Traffic is high, but your store's checkout times out because the payment provider is overloaded. Ads are still spending. Pause the campaigns, put a banner on the site ("high demand, try again in 30 minutes"), and resume ads once payments go through again. Lost hours hurt less than paying for clicks that can't convert.
What if prices change during the event? In high-inflation periods, a price in the ad can go out of date quickly. Prefer percentage messages ("30% off") or "from" prices in the ad text, and keep the exact price on the product page.
After the event
Count the real profit: orders, minus product costs, shipping, fees, installment costs, returns and ad spend. Exclude buyers from your next sale ads, send them a thank-you, and retarget people who added to cart. In Mexico and Argentina, the November events lead straight into the holiday season; our Christmas Meta ads guide covers the next step.
How Meta Ads Copilot Max helps with sale events
Meta Ads Copilot Max works in English and Spanish and writes ads in either language. It turns a product page into a ready ad, and Claude in Chrome builds the campaign in Ads Manager created paused, so your event campaigns can be built and reviewed days ahead, with nothing spending until you approve. During the event, Copilot alerts you when cost per sale goes over your margin, flags ads stuck in review or rejected and spend with no results, and the read-only Spend tab refreshes every 15 minutes so you can follow spend and campaigns without opening Ads Manager. It requires the Claude in Chrome extension. Start your free 7-day trial to try it.
Frequently asked questions
Do I have to register to sell during Hot Sale or El Buen Fin?
Not to run your own sale on those days. Registering with the organizer is what gets your store listed on the official event site and lets you use the event's name and logo. Requirements, fees and deadlines vary, so check the organizer's site well in advance.
When are Hot Sale, El Buen Fin, CyberMonday and Cyber Day?
Usually Hot Sale is in May (Argentina) or late May to early June (Mexico), CyberMonday Argentina in early November, El Buen Fin in mid November and Cyber Day Chile around late May or June. Organizers announce exact dates each year, so always confirm on the official site.
How early should I create my event ads?
At least a week before the event starts, so Meta's review is finished before the rush. Create them paused or scheduled, and prepare backup ads in case one is rejected.
Should I mention installments in my Meta ads?
If you offer interest-free installments, yes: in many Latin American markets they are a major reason to buy. Just include their cost in your margin math, and make sure the conditions in the ad match those at checkout.
What if my cost per sale doubles on the first day?
Check whether it's one ad set or all of them before acting. Pause the weak ones, move budget to retargeting and your best sellers, and compare against your limit from the discount math rather than your usual cost per sale.
