Hi there,
Thanks for reaching out!
Happy to give you some initial thoughts on your scaling problem. It's a really common situation to be in, so don't feel like you've done something drastically wrong. To be honest, the whole ABO vs CBO debate is a bit of a red herring that distracts people from the real issue. The fact your CPCs shot up and sales stopped tells me the problem isn't the budget setting, it's almost certainly your audience and overall campaign strategy. Let's get into it.
We'll need to look at why your campaign really failed...
First things first, let's put the ABO vs CBO thing to bed. I've seen massive, successful accounts run entirely on ABO, and others that do brilliantly with CBO. One isn't inherently 'better' for scaling than the other. They are just different tools for allocating budget. Thinking that switching to CBO is the magic bullet for scaling is a trap loads of people fall into. It's not the button you press, it's the thinking behind it that counts.
What almost certainly happened here is a classic case of audience saturation and ad fatigue. Your first week went well because Facebook's algorithm is brilliant at finding the 'low-hanging fruit'. In any given audience, there's a small pocket of people who are ready to buy *right now*. Your ads found them, you got sales, and everything looked great. It felt like you'd struck gold.
But that pocket is always small. When you tried to "scale" – either by launching the CBO or just by letting the ABO campaign run longer with the same budget – you were asking Facebook to find *more* of these easy-to-convert people in the same small pond. But they weren't there. You'd already picked them.
So what does the algorithm do? It does what you told it to: it keeps spending your $20 per day. But now, it has to show your ads to the *next* layer of people in that ad set. The 'maybes'. The 'not-quite-sures'. The people who are less interested. To get them to even click, the cost goes up. They are less likely to buy, so your sales dry up. Your CPCs tripled because the algorithm was working three times as hard to get a click from a much less interested group of people. It's not a campaign failure, it's a strategic one. You exhausted the best part of your audience, and you didn't have a plan for what came next.
You didn't do anything "wrong" in the technical sense, you just hit the natural limit of your initial tactic. True scaling isn't about just turning up the volume on something that worked for a week. It’s about building a system that can consistently find new customers, month after month.
I'd say you need to stop thinking vertically and start thinking horizontally...
Your current mindset seems to be based on 'vertical scaling'. You found one thing that worked (one campaign, three ad sets) and your first instinct was to pour more money into it to get more of it. As you've seen, that approach hits a wall very, very quickly. It's like having one fishing rod in a tiny pond and thinking that if you just yank on it harder, you'll catch more fish. Eventually, the pond is empty.
The key to sustainable growth is 'horizontal scaling'. Instead of yanking harder on the one rod, you find more ponds and use different types of bait. In Facebook Ads terms, this means systematically testing new audiences and new creatives.
Your job isn't to find one 'perfect' ad set and run it forever. Your job is to build an engine of discovery. An engine that is constantly searching for new pockets of customers. Some tests will fail, and that's fine. Some will perform okay. And a few will be winners. The goal is to always have a pipeline of new audiences and creatives ready to go, so when one starts to fade (and they all do), you can swap in the next one.
This is a fundamental shift in thinking. You're moving from being a 'campaign launcher' to a 'portfolio manager'. Your ad account becomes a portfolio of tests, and you're constantly rebalancing your investment towards what's working *now*, while funding new experiments to find what will work *next*.
You'll need a proper campaign structure...
To scale horizontally, you can't just have one campaign doing everything. You need to structure your account to reflect the customer journey. Most beginners lump everyone together, but a person who's never heard of you needs a very different message from someone who has already visited your checkout page. We break this down into a simple funnel: Top of Funnel (ToFu), Middle of Funnel (MoFu), and Bottom of Funnel (BoFu).
Top of Funnel (ToFu) - Prospecting:
This is your "finding new ponds" campaign. The only job of this campaign is to find brand new people who have never interacted with you before and introduce them to your brand or product. This is where you do all your horizontal scaling and testing of new audiences based on interests, behaviours, and lookalikes. The goal here is to drive traffic and get people into your funnel. Don't always expect immediate sales from every ToFu ad set, especially with more expensive products. Its job is to feed the rest of the machine.
Middle of Funnel (MoFu) - Re-engagement:
This campaign targets people who've shown some interest but haven't taken a key action yet. They might have visited your website, watched a part of your video ad, or engaged with your Facebook page. They know who you are, but they aren't sold yet. The goal here is to build more trust, overcome objections, and nudge them further down the path to purchase. The messaging here is different – maybe showing testimonials, different product use-cases, or explaining your brand story.
Bottom of Funnel (BoFu) - Retargeting:
This is where you make your money. This campaign targets people who are on the verge of buying. They've added a product to their cart, initiated checkout, or visited the checkout page. These are your hottest leads. Your ads here should be direct, creating urgency and making it easy for them to complete their purchase. Think "Forgot something?" or a reminder of the product they were looking at, maybe even a small discount if that's part of your strategy (though be careful not to train people to always wait for a discount).
A basic, scalable structure would look something like this:
| Campaign (Objective: Conversions/Sales) | Ad Sets (Audiences) | Purpose |
|---|---|---|
| [ToFu] Prospecting - CBO |
-> Ad Set 1: Interest Group A (e.g., Competitor Brands) -> Ad Set 2: Interest Group B (e.g., Related Magazines/Blogs) -> Ad Set 3: LAL of Purchasers (1%) -> Ad Set 4: Broad Targeting (if pixel is mature) |
Find new customers. Test new audiences constantly. Scale by adding new test ad sets here. |
| [MoFu/BoFu] Retargeting - ABO |
-> Ad Set 1: Website Visitors (Last 30 Days) - Exclude Purchasers -> Ad Set 2: Video Viewers (50%+) / Social Engagers (Last 90 Days) - Exclude Purchasers -> Ad Set 3: Add to Cart / Initiated Checkout (Last 14 Days) - Exclude Purchasers |
Bring back interested people and close the sale. The budgets here are usually smaller but deliver a very high ROAS. |
This structure allows you to have a dedicated budget for finding new people (ToFu) and a separate, consistent budget for converting warm leads (MoFu/BoFu). It stops your prospecting from eating the budget that should be used to close sales with people who've already added to cart.
You probably should rethink your audience targeting...
Inside that ToFu campaign is where the real work happens. Your three ad sets likely targeted something too broad or saturated too quickly. You need a systematic way to prioritise and test new audiences. This is the hierarchy we generally follow, from coldest to warmest, when building out a prospecting campaign:
1. Detailed Targeting (Interests, Behaviours): This is your starting point. But you have to be clever. Don't just target "shopping" or "clothing" if you sell t-shirts. That's way too broad. Think about your Ideal Customer Profile (ICP). What specific brands do they follow? What magazines do they read? What tools do they use? What influencers do they listen to? The goal is to find interests that your ideal customer is *much* more likely to have than the general population.
For instance, if you're selling a premium project management tool for creative agencies, targeting the interest "Project Management" is a bad idea. You'll get everyone. Instead, you could try layering interests: People who are Facebook Page Admins of "Creative Agencies" AND are interested in "Asana" or "Monday.com" (your competitors). That's a much more prequalified audience.
2. Lookalike Audiences (LALs): Once you have enough data (you need at least 100 people for a source audience, but honestly, you want 1,000+ for it to be really effective), you can start creating Lookalikes. These are incredibly powerful. Facebook analyses the people in your source audience and finds millions of other users who share similar characteristics. But you must prioritise the source audience:
- -> A LAL of your Purchasers is pure gold. It's the highest quality audience you can build.
- -> Next is a LAL of Initiated Checkouts.
- -> Then a LAL of Add to Carts.
- -> Then a LAL of your Website Visitors.
You see the pattern? The closer the source audience is to the final sale, the better the Lookalike will perform. Start with a 1% LAL in your target countries, as it's the most concentrated. You can test wider percentages (2%, 3-5%) later as you scale.
3. Broad Targeting: This is where you target no one at all. You just set the country, age, and gender, and let Facebook's algorithm do the rest. This can work amazingly well, BUT only when your pixel has thousands of conversion events on it. It needs a huge amount of data to understand who your customer is. Don't start here. It's a way to scale once you have a very mature ad account.
Your process should be to have a ToFu campaign constantly testing 2-3 new ad sets from this hierarchy every single week. Give them a small, controlled budget. After a few days, you'll see which ones show promise. Kill the losers quickly, and give a bit more budget to the winners. This is the engine of horizontal scaling.
Your offer and message needs to resonate beyond the easy wins...
Here's another hard truth: the ad creative and message that worked for that first, hyper-responsive group of people will probably not work for colder audiences. The first group already had the problem and were actively looking for a solution. You just had to show up. Colder audiences... they don't even know they have the problem yet, or they don't think it's urgent.
You can't just show them a product and a price. You need to sell them on the problem first. Your ad copy and creative needs to change. This is where copywriting frameworks come in handy. For a prospecting ad, try something like Problem-Agitate-Solve (PAS):
Problem: State a pain point they are feeling. "Tired of your campaigns dying after one good week?"
Agitate: Poke the bruise. Make the pain more vivid. "Watching your CPCs skyrocket while sales flatline is frustrating. You start to question if Facebook Ads even work for your business anymore."
Solve: Introduce your product as the solution. "The issue isn't your product, it's your structure. Our [product name] helps you build a scalable system to find new customers consistently, without the guesswork."
This approach hooks them emotionally before you ever ask for a sale. It makes them feel understood. For your retargeting ads, you can be more direct, but for prospecting, you have to earn their attention first by speaking directly to a nightmare they are experiencing. You need a bank of different creatives – images, videos, carousels, testimonials – that you can rotate to avoid ad fatigue and test different angles to see what resonates with these new audiences.
I've detailed my main recommendations for you below:
This is a lot to take in, I know. It's a shift from just running ads to building a proper advertising system. Here is the main advice I have for you, broken down into an actionable plan.
| Recommendation | Action Steps | Why It Matters |
|---|---|---|
| 1. Adopt a Funnel Structure | Create three separate, long-term campaigns: ToFu (Prospecting), MoFu (Re-engagement), and BoFu (Retargeting). Set your conversion objective to Sales/Purchases for all of them. | This aligns your advertising with the customer journey, allowing you to deliver the right message to the right person at the right time and control budget allocation properly. |
| 2. Focus on Horizontal Scaling | In your ToFu campaign, commit to testing 2-3 new ad sets every week. Start with specific, layered interests. Move to Lookalikes once you have enough data (1000+ purchasers is a good goal). | Prevents audience saturation and provides a constant stream of new, potential customers. This is the only way to achieve sustainable, long-term growth. |
| 3. Prioritise Your Audiences | For Lookalikes, prioritise audiences based on conversion value (Purchasers > Initiated Checkouts > Add to Carts). For retargeting, segment based on recency and intent (e.g., ATC 14 days vs. Website Visitors 30 days). | Focuses your budget on users most likely to convert, improving efficiency and ROAS. Not all audiences are created equal. |
| 4. Build a Creative Testing System | Develop a backlog of ad ideas. Test different hooks, angles, formats (video, image, carousel), and copy (e.g., PAS framework). Refresh your winning ads every 2-4 weeks to combat fatigue. | A great audience with a tired ad won't perform. Constant creative testing is essential to keep performance high and discover new winning messages. |
| 5. Shift Your Mindset | Stop looking for a single "winning ad set". See your ad account as a portfolio of tests. Your job is to manage this portfolio, cutting losses quickly and doubling down on what's working *now*. | This removes emotion from the process and turns you into a systematic advertiser, which is necessary for scaling successfully. |
Implementing this kind of system is a significant amount of work. It requires constant monitoring, testing, creative production, and strategic analysis. It’s not just a set-and-forget task; it’s an ongoing process. This is often where businesses decide they need expert help – not because they can't learn it, but because their time is better spent working on their products and overall business strategy.
Getting it right can be the difference between a business that stays small and one that achieves explosive growth. We've seen it happen time and again, like with an eCommerce client where we helped them achieve a 1000% return on ad spend by implementing this exact type of structured approach, or a software client where we reduced their Cost Per User Acquisition from £100 to just £7 for a Medical Job Matching SaaS by systematically testing audiences and creatives.
If you'd like to go over your specific situation in more detail and have us put together a customised action plan for you, we offer a free, no-obligation initial strategy session. We can audit your account together and give you a clear roadmap for how to get your campaigns back on track and truly start scaling.
Either way, I hope this detailed breakdown has been helpful and gives you a much clearer path forward.
Regards,
Team @ Lukas Holschuh
Lukas Holschuh
Founder, Growth & Advertising Consultant
Great campaigns fail without expertise. Lukas and his team provide the missing strategy, optimizing your entire advertising funnel—from ad creatives and copy to landing page design.
Backed by a proven track record across SaaS, eLearning, and eCommerce, they don't just run ads; they engineer systems that convert. A data-driven partnership focused on tangible revenue growth.