Most businesses have no idea if their ads are working. That’s not a dig, it’s just the reality. You’re spending money every month, your agency or platform sends you a report full of numbers, and you nod along while quietly wondering if any of it is actually doing something. This article will help you cut through the noise, understand which metrics actually matter, and figure out whether your campaigns are earning their keep.
We’ll cover the difference between numbers that look impressive and the ones that actually tell you something, how to check if your tracking is even set up correctly, and what “working” should look like at different stages of a campaign. By the end, you’ll have a much clearer picture, even if that picture turns out to be a bit uncomfortable.
The Metrics Most People Look At (and Why They're Misleading)
When most business owners open their ads dashboard for the first time, they get drawn to the big flashy numbers. Impressions in the millions. Thousands of clicks. A click-through rate that looks healthy enough. It feels like progress. The problem is, none of these tell you whether you’re making money.
Impressions just mean your ad appeared on someone’s screen. Clicks mean they visited your site. CTR (click-through rate) measures the ratio between the two. These are useful for diagnosing creative or targeting issues, but they are not performance metrics on their own. A campaign with a 5% CTR and zero conversions is still a failure. Don’t let the platform convince you otherwise. Ad platforms are incentivised to show you numbers that look good, because that’s what keeps you spending.
The Metrics That Actually Tell You Something
Here’s where you should actually be focusing your attention:
Cost per acquisition (CPA): How much does it cost you to get one customer, lead, or sign-up? This is the clearest indicator of whether a campaign is profitable. If your CPA is lower than what that customer is worth to you, great. If not, something needs to change.
ROAS (Return on Ad Spend): For e-commerce especially, ROAS tells you how much revenue you’re generating for every pound spent on ads. A ROAS of 3x means every £1 spent returns £3 in revenue.
Cost per lead: For B2B or service businesses, this is often more relevant than ROAS. Are the leads you’re getting actually affordable given your average deal size?
Revenue attributed to ads: Not just what the platform claims, but what you can actually trace back to ad activity through your CRM or analytics.
The key with all of these is to read them honestly, not optimistically. Platforms like Meta and Google are very good at claiming credit for sales that would have happened anyway, so always cross-reference with your actual revenue data.
Are You Tracking Things Properly in the First Place?
Before any of the above metrics mean anything, you need to know your tracking is actually working. This is one of the most overlooked problems in paid advertising, and it causes enormous confusion. If your conversion tracking is broken or misconfigured, you’re essentially flying blind, and you might be making decisions based on data that’s completely wrong.
For Google Ads, you need the Google Tag (or Google Tag Manager) installed on your site, with conversion actions set up correctly for the things you actually care about: purchases, form submissions, phone calls, sign-ups. For Meta, you need the Meta Pixel firing on the right pages, with the right events. LinkedIn has its own Insight Tag. Each platform tracks differently, and they all need individual attention.
A quick way to sanity-check your tracking: compare the number of conversions reported in your ad platform against what you can see in your CRM or website analytics. If the numbers are wildly different, something is off. It’s also worth using browser extensions like Meta Pixel Helper or Tag Assistant for Google to verify that tags are firing where they should be. Broken tracking doesn’t just give you bad data. It also stops automated bidding from working properly, which can actively hurt your campaign performance.
What "Working" Looks Like at Different Stages
This is probably the bit most people skip over, and it leads to a lot of bad decisions. Paid ads are not a tap you turn on and immediately see results from. There’s a learning phase, and if you don’t account for it, you’ll pull the plug too early on something that just needed more time.
In the first one to two months, most platforms, particularly Meta and Google with smart bidding, are still learning. They’re figuring out who actually converts, what times of day work, which audiences respond. Your CPA will often be higher during this period. That’s normal. The mistake is panicking and making constant changes, which resets the learning phase every time and means you never actually get useful data.
By month three, you should start seeing patterns emerge. CPAs should be stabilising. You should have enough conversion data to make informed decisions about what to scale and what to cut. If you’re still seeing nothing after three months of reasonable budget and a properly set-up campaign, that’s a different conversation.
Signs Your Ads Are Definitely Not Working
Sometimes it’s not ambiguous at all. There are clear red flags that suggest your campaigns need serious attention, not just patience:
CPA is consistently climbing month on month with no change in targeting or creative. That’s not variance, that’s a trend.
Zero conversions after 60 days of running at a sensible budget. Even in learning phase, you’d typically expect some signal by now.
Traffic in your ad platform doesn’t match your website analytics. If Google Ads says you had 1,000 clicks but Google Analytics only shows 200 sessions from paid search, something is very wrong.
You’re getting clicks but no one stays on the site. A very high bounce rate on paid traffic often means you’re reaching the wrong audience, or your landing page isn’t doing what it needs to.
Your ad account spend keeps increasing but revenue stays flat. If the relationship between spend and results has completely decoupled, there’s usually a structural problem somewhere.
Any one of these on its own might have an explanation. All of them together? That’s a serious problem.
When to Be Patient and When to Make Changes
This is genuinely one of the trickiest parts of managing paid ads, and even experienced teams get it wrong sometimes. Normal variance in performance can look alarming if you’re checking your dashboard every day. CPAs fluctuate. Weeks can be slow for seasonal reasons. Algorithms go through periods of instability. Not every dip is a disaster.
The general rule is: give a campaign enough time and data before making changes. Most platforms recommend waiting until you’ve accumulated at least 30 to 50 conversion events before drawing conclusions about performance. If you’re only getting two or three conversions a week, one bad week can look like the whole strategy is falling apart when really it’s just noise.
On the other hand, if you’ve been running for three months, spent a meaningful budget, and haven’t seen a single conversion you can genuinely attribute to the campaign, that’s not patience. That’s something that needs fixing. The difference between normal variance and a real problem is usually time plus data. When in doubt, look at the trend over at least four weeks rather than a single week in isolation.
If You Genuinely Can't Tell, That's Probably an Answer
Here’s the honest truth: if you’ve been running paid ads for a few months and you still can’t confidently say whether they’re working or not, that’s already telling you something. It usually means either the tracking isn’t set up properly, you don’t have the right benchmarks to measure against, or you don’t have someone in your corner who can interpret what the data is actually saying.
A well-managed paid ads strategy should give you clarity, not confusion. You should know your CPA, understand whether it’s profitable, and have a clear view of where the campaign is heading. If that’s not what you’re getting right now, it might be worth speaking to someone who can get your tracking sorted, your benchmarks set, and your campaigns actually pulling their weight.
If you’d like a fresh pair of eyes on your ad account, we’re happy to take a look. Get in touch with Snowball Creations and let’s work out what’s going on.