Black Friday Strategy: The Q4 Profit Plan (5 Analyses to Run Before BFCM)

Black Friday 2025 is a good example. Shopify merchants generated $14.6 billion over Black Friday Cyber Monday (BFCM), up 27% year on year, while more than 94,000 merchants recorded their best-ever sales day. Adobe reported an average Black Friday discount of 23.7%. These are impressive numbers, but they all tell us about sales, not how much profit brands actually kept.

That distinction matters because Q4 changes the economics of ecommerce. Discounts get deeper, acquisition costs behave differently, returning customers make up a larger share of revenue, product mix changes and customers acquired through a sale may behave very differently from those acquired during the rest of the year.

So rather than starting your Black Friday marketing strategy with the question, “How much revenue can we do?”, we think there are five more useful questions to answer first. They form the basis of our Q4 Profit Playbook, a five-part process designed to turn last year's data into an actual plan for customer acquisition, products, promotions, creative and Q5.

1. Were last year's Black Friday customers actually worth acquiring?

Most brands will know roughly what CAC they achieved last Black Friday. Far fewer know what those customers were actually worth.

Imagine your normal new-customer CAC is $45 and last Black Friday you acquired customers for $35. Looking at CAC alone, BFCM was a success. But Black Friday customers are usually acquired under different conditions: they receive a larger discount, generate less first-order margin and may be more price-sensitive than customers acquired during a normal month.

The Playbook illustrates this with a $70 order at a 60% gross margin. At full price, the order generates $42 of product margin. Apply a 20% discount and revenue falls to $56, while the $28 product cost stays exactly the same. Product margin therefore falls from $42 to $28, meaning a 20% discount has reduced product margin by 33%.

This is why CAC on its own isn't enough. To understand whether your BFCM acquisition was actually successful, isolate the customers whose first-ever purchase happened during last year's promotional window and compare them with customers acquired during a normal, non-promotional period. Look at first-order gross profit, CAC, repeat purchase rate and cumulative gross profit per customer at 30, 90, 180 and eventually 365 days.

The result can completely change your interpretation of last year's performance. In one worked example in the Playbook, BFCM customers were acquired at a $31 CAC compared with $42 for a normal cohort. However, after 365 days the BFCM customer had generated just $27 in gross profit compared with $50 for the normal customer. Their repeat rate was also 16% compared with 34%, meaning the apparently cheaper customer was actually the worse investment.

Once you know how those customers behave, you can set an allowable BFCM CAC based on customer value within the payback period you're willing to fund, rather than simply carrying your normal CAC target into November.

There is another important step here: forecast returning-customer revenue before setting your paid acquisition budget. A meaningful amount of BFCM revenue can come from customers who already know your brand. If that revenue isn't separated out, paid media can end up getting credit for customers who were likely to purchase anyway, making blended performance look stronger and encouraging you to overspend on acquisition.

2. Which products should you actually put acquisition spend behind?

Once you know what a customer is worth, the next question is what you want them to buy first.

The obvious approach is to look at last year's bestsellers and make those products the centre of this year's campaigns. The problem is that your highest-revenue product isn't necessarily your best acquisition product. It might have weak margins, require a high CAC and bring in customers who never purchase again. Meanwhile, a lower-revenue product could have stronger margins, acquire customers efficiently and lead to significantly higher repeat purchase behaviour.

In the Playbook, we recommend judging products across five measures: revenue, gross margin, CAC, repeat rate and 12-month customer value. One example compares two products that each generated $100,000 in revenue. Product A had a slightly better CAC at $28, but after 12 months its customers had generated only $35 in gross profit each. Product B had a $32 CAC but generated $87 in gross profit per customer. After CAC, that's $7 versus $55 in value.

Looking at revenue or CAC alone would have pointed you towards the wrong product.

To make this actionable, we classify products into four roles:

• Magnets bring in valuable customers and are candidates for paid acquisition.
• Workhorses generate strong first-order profit and should be scaled while protecting their margin.
• Traps look good on the sales report but perform poorly on first-order profit and customer value.
• Dead Stock represents cash tied up in inventory and can potentially be used as gifts, bundle components or Q5 clearance stock.

This gives you a much better foundation for BFCM planning because you're no longer asking which products you expect to sell the most. You're deciding which products you actually want to acquire customers through.

3. What should your BFCM offer be, and when should you launch it?

The third analysis is where customer economics and product economics come together.

One of the easiest mistakes to make during Black Friday is deciding on a discount percentage before modelling what it does to contribution. A 30% discount sounds simple from a marketing perspective, but the impact on profit can be much larger than 30%.

Take a $100 order with $30 of product cost, $5 shipping, $3 payment fees and a $22 CAC. At full price, that order leaves $40 of contribution. With 30% off, revenue falls to $70 while most of those costs remain. Contribution drops from $40 to just $10.

At that point, you need four times as many orders simply to generate the same total contribution.

That doesn't mean deep discounting is always wrong. If the promotion materially improves conversion, reduces CAC, increases new-customer volume and those customers become valuable repeat buyers, accepting lower first-order contribution can be a perfectly rational decision. The important thing is that you make that trade deliberately.

It's also worth modelling alternatives to a blanket sitewide discount. A gift with purchase, tiered saving or bundle can give the customer a similar perception of value while producing completely different economics for the brand. In one Playbook example, several offers deliver roughly $30 or more of customer value, yet contribution per order ranges from $10 to $49.

The timing of the promotion deserves the same level of analysis. Instead of choosing a launch date based on what competitors are doing this year, look at your own daily sales, sessions and conversion data from last Q4. Identify when demand actually began to lift and whether there was a pre-sale dip where customers appeared to delay purchases in anticipation of your promotion.

From there, build a promotional calendar rather than running one offer for the whole month. The Playbook breaks this into early access, momentum building, the main BFCM offer and a final call, with each stage serving a different commercial purpose.

By the time you're finished, marketing, finance, merchandising and creative should all be working from the same plan, with agreed launch dates, products, target CAC and minimum contribution per order.

4. What actually made last year's winning creative work?

Creative analysis often suffers from the same problem as product analysis: we look at the outcome without understanding what caused it.

If you open Meta, sort last year's BFCM ads by ROAS and ask your creative team to make more of the winners, you could be drawing the wrong conclusion. An ad may have generated a high ROAS because of the product, audience, offer or funnel stage behind it, or simply because Meta didn't put much spend through it.

A better approach is to break each ad into its component parts. The Playbook recommends tagging creative by hook, angle, format, product and offer, then comparing performance across those groups using metrics including spend, hook rate, CTR, conversion rate, cost per purchase and new-customer CAC.

The important shift is from asking “Which ad won?” to “Which characteristics consistently appeared in our winners?”

Maybe parent-problem messaging consistently beats product-led messaging. Perhaps real photography beats designed graphics, UGC outperforms polished creative, or one product performs significantly better when paired with a particular angle.

Those are insights you can actually turn into production instructions. Instead of handing your creative team screenshots of last year's top five ads, you can give them a brief showing which hooks to develop, which formats to scale, which products to feature, which angles need testing and which evergreen ads should stay live.

5. What happens after everyone else turns their ads off?

The final part of the Q4 Profit Plan actually happens after Q4.

We define Q5 as December 26 to mid-January, because the customer doesn't suddenly stop shopping when Christmas ends. Their reasons for buying simply change. Instead of gifts and delivery deadlines, you're dealing with gift cards, exchanges, self-purchases, things people wanted but didn't receive, post-Christmas pricing and New Year goals.

There are also several distinct audiences to think about. Customers acquired during BFCM are entering a potential second-purchase window, existing customers may be receptive to replenishment or cross-sells, gift recipients are interacting with the brand for the first time, and completely new customers may enter the market because of New Year intent.

The Playbook therefore asks you to decide what job Q5 needs to do for your business: acquire, retain or clear. Acquisition might mean returning to your Magnet products with New Year creative. Retention might mean driving the second purchase from your BFCM cohort. Clearance might mean turning remaining Dead Stock back into cash through bundles and gifts rather than discounting the whole site.

The key is to build this plan before BFCM starts. By December 26, you should already know the products you're pushing, inventory you're clearing, customers you're targeting, offer, creative angle, target CAC and campaign launch date.

The end result: one Black Friday strategy your whole team can work from

The purpose of these analyses isn't to give you five more dashboards to check during November. Each one should result in a decision that feeds into the next.

Customer value determines your allowable CAC and acquisition budget. Product analysis determines what you should acquire through, protect and clear. Those economics inform your offer and promotional calendar. Your products and offer inform the creative brief, and all of that feeds into a Q5 strategy that is ready before the Black Friday rush begins.

By the end of the process, you should be able to put the core of your Q4 strategy onto one page: your allowable BFCM CAC, acquisition products, minimum contribution per order, primary offer, strongest creative angle, inventory you need to move, Q5 play and Q5 launch date.

That's what we've built the Q4 Profit Playbook to help you do. It walks through all five analyses step by step, shows you what data to pull, includes worked examples, and gives you a one-page Q4 Plan to complete as you go.

If your current Black Friday plan is mainly a revenue target, a ROAS target and a discount percentage, the Playbook will help you add the part that matters most: how much of that revenue you actually keep.

Download the free Q4 Profit Playbook: 5 analyses to run 60 days before Black Friday, and use last year's data to build a higher-margin Q4.

Key takeaways

• A cheaper BFCM CAC can still be the worse investment: judge Black Friday cohorts on gross profit and repeat rate over 365 days, not CAC alone.
• Forecast returning-customer revenue before setting your paid acquisition budget, so paid media doesn't take credit for customers who would have bought anyway.
• Choose acquisition products on margin, CAC, repeat rate and 12-month value, not last year's bestseller list.
• Model what a discount does to contribution per order before you pick a percentage: 30% off can cut contribution by 75%.
• Tag creative by hook, angle, format, product and offer to find what consistently wins, not which single ad won.
• Build your Q5 plan (December 26 to mid-January) before BFCM starts.

Frequently asked questions