Article summary · 30 s
Black Friday 2026 falls on Friday 27 November, Cyber Monday on the 30th. During this period, the cost of showing ads rises sharply: a Swiss online store should build its audience in October, then convert it at the end of November. The discount is calculated from margin, not from what competitors offer.
- 1
During Black Friday, advertising competition pushes up the cost of showing ads sharply.
- 2
October is for acquiring the audience: emails, SMS, visitors, engaged people.
- 3
In early November, you lock in the offer, the creatives, sales tracking, payment and stock.
- 4
In Black Friday week, the budget goes first to audiences that are already warm.
- 5
A discount reduces margin, and therefore the acquisition cost you can afford: calculate it before announcing it.
Want to go further? Ask:
At the end of September, many online stores have not yet thought about Black Friday. Yet this is the right moment. On Friday 27 November 2026, every brand competes for the same advertising space at the same time. Those who start on the day pay top price to reach strangers. Those who built their audience in October speak to people who are expecting them.
Why Black Friday is prepared in October
Meta and Google sell their ad space by auction. At the end of November, a great many advertisers bid at the same time: CPM, the cost per thousand impressions, rises sharply. Each new visitor then costs more than in October.
The consequence is simple: acquire the audience before, convert it during. In October, auctions are calmer. You recruit subscribers, visitors and people who interact with the brand. At the end of November, you speak to them first, by email, SMS and remarketing, instead of paying top price for the attention of people who do not know you.
The week-by-week countdown plan
| Period | Goal | Main actions |
|---|---|---|
| 28 Sept – 11 Oct | Open collection | Waiting list or early access, email and SMS form, consent compliant with the nFADP |
| 12 – 25 Oct | Build audiences | Acquisition campaigns driving sign-ups, audiences of site visitors and of people engaged on Instagram and Facebook |
| 26 Oct – 8 Nov | Test | Tests of creatives and offer angles on small budgets, reading the results |
| 9 – 15 Nov | Lock in | Final offer, final creatives, emails written, stock confirmed |
| 16 – 22 Nov | Check | Conversion tracking, checkout journey, TWINT and other payments, shipping costs, product pages |
| 23 – 29 Nov | Convert | Early access for subscribers, then public launch on the 27th, remarketing, budget on warm audiences |
| 30 Nov – end Dec | Extend | Cyber Monday on the 30th, year-end campaigns, turning new customers towards a second purchase |
October: collect and test
A reason to sign up. A waiting list or a few hours of early access gives a concrete reason to leave an email address or phone number. A plain “sign up for our newsletter” converts poorly.
Audiences you own. Subscribers belong to you. Site visitors and people who watched your videos or interacted with your posts stay on the platforms: you group them into custom audiences to retarget at the end of November.
Tests while it is affordable. Two or three offer angles, several creative formats: October is for learning what works before every impression costs more.
Early November: lock in and check
The offer is settled and calculated (see below). It is not changed during Black Friday week.
Creatives are ready, in French and, if you sell in German-speaking Switzerland, in German. Ads must also pass the platforms' review, which can take time in a busy period.
Sales tracking works: pixel, server-side tracking, purchase events reported correctly. Reliable measurement avoids optimising blind during the most expensive week of the year.
Payment is tested end to end, TWINT included, on mobile. A real test order beats an assumption.
Stock is confirmed with suppliers, with realistic restocking times.
Black Friday week: convert warm audiences
Subscribers receive the offer first, by email and SMS. Remarketing then targets visitors, abandoned baskets and engaged people. The budget goes mainly to these warm audiences, already close to buying. Cold prospecting continues, but with a smaller share: that is where rising costs weigh most.
Afterwards: Cyber Monday, year end, second purchase
Cyber Monday on 30 November extends the operation; December follows with year-end shopping. Above all, Black Friday brings in new customers. Offering them a second purchase, at full price and at the right time, is what really makes the operation pay.
Calculating the Black Friday discount from margin
A discount comes entirely out of margin. The cost of the product, shipping and payment fees stay the same. Yet margin sets the maximum acquisition cost: what you can spend to win an order without losing money. The full method is set out in our article on the maximum CAC of an online store.
In a period when every impression costs more, a halved margin leaves little room. Hence the importance of selling mainly to audiences already acquired, and of considering other forms of offer: a gift, a bundle, free delivery above a certain amount. Each is calculated the same way, as a real cost per order.
Common mistakes
Announcing a discount without calculating it. A discount chosen to “do what everyone else does” can make every sale loss-making once advertising is paid for.
Launching campaigns on the day. Algorithms need time and data to learn, and auctions are then at their highest.
Putting everything on Meta. Email, SMS and Google search capture people who are already looking for you. A single platform is a single point of failure.
Forgetting stock. Paid ads pointing to out-of-stock products means wasted budget and disappointed customers.
Training customers to expect discounts. Repeated promotions teach people to wait for the next one. A short, dated operation protects prices for the rest of the year.
What is specific to the Swiss market
A small market. In French-speaking Switzerland, the same people quickly see the same ads. Audiences wear out sooner: hence the value of building them in advance and refreshing creatives.
At least two languages. A store selling across Switzerland prepares its creatives, emails and pages in French and German, not as a last-minute machine translation.
Clear delivery and shipping costs. Delivery times, shipping costs, any customs duties for products shipped from abroad: everything must be visible before the basket. A bad surprise at checkout makes people abandon the purchase.
Expected payment methods. TWINT, cards, invoice depending on your audience: the checkout must offer what Swiss buyers use. On Shopify, this is checked before November, not during.
Key points
Key takeaways
- 01
Black Friday 2026 takes place on 27 November; the audience is built in October, when acquisition costs less.
- 02
Subscribers, visitors and engaged people receive the offer first and take most of the week's budget.
- 03
A discount is calculated from margin: it reduces the affordable acquisition cost by the same amount.
- 04
The operation often pays off afterwards, when new customers make a second purchase.
Frequently asked questions
01When should Black Friday campaigns be launched?
Email and SMS collection and creative tests start in October. Conversion campaigns begin in Black Friday week, with subscribers first.
02What discount should I offer for Black Friday?
There is no universal rate: the discount follows from your margin. Calculate what remains per order after the discount, then compare it with the expected acquisition cost.
03Should I do Black Friday if my brand never runs promotions?
Not necessarily. Early access, a gift or a limited edition can make use of the period's attention without lowering prices.
