PPC advertising can be one of the fastest ways to get your business in front of the right people at the right time. When it works, it really works. But when it does not, it can drain budget quickly, leaving you wondering where it all went.
In practice, many underperforming campaigns come back to the same few issues. They are not always complex problems. They are usually setup, tracking or review issues that were missed for too long.
After reviewing PPC accounts across different sectors, the same patterns start to appear. Here are the PPC mistakes that come up most often, and what you can do about them.
1. Targeting the Wrong Keywords
This is where many campaigns go wrong before they even launch. Bidding on keywords that are too broad, too vague, or not aligned with what your actual buyers search for can waste budget quickly.
A keyword may look relevant on the surface, but the search intent behind it can be completely different from what the business needs. For example, a service-based business may attract research searches, job searches, or users looking for free tools rather than commercial enquiries.
Fix: Start with specific, intent-driven keywords. Use phrase and exact match where tighter control is needed and review the search terms report regularly. The keyword list shows what you planned to target; the search terms show what users actually searched before clicking.
2. Ignoring Negative Keywords
Negative keywords are one of the simplest ways to reduce wasted spend, but they are often underused.
They tell Google what not to show your ads for. Without them, your budget can end up serving people who were never likely to buy, enquire, or take the action you want.
Depending on the business, terms such as “free”, “jobs”, “training”, “DIY”, or “cheap” may need to be excluded.
Fix: Build a negative keyword list before launch, then keep adding to it from search term reviews. This is not a one-off task. Search behaviour changes, and new irrelevant queries can appear as campaigns gather more data.
3. Generic Ad Copy
Your ad copy has to do a lot in very little space. It needs to show relevance, value and a reason to click.
The most common issue is ad copy that sounds like everyone else. Phrases such as “leading provider”, “over 20 years of experience”, or “get in touch today” may be true, but they do not always make the business stand out.
Good PPC copy should be specific. It should speak to the user’s need, show a real benefit and match the intent behind the search.
Fix: Write ads around what matters to the customer, not only what the business wants to say. Test different versions, but make sure each headline and description is strong on its own. Responsive search ads need useful assets, not just a high number of assets.
4. Sending Traffic to the Wrong Page
A PPC click is only valuable if the landing page helps the user take the next step.
One common mistake is sending traffic to the homepage when the ad promotes a specific product or service. Another is sending users to a page that only partly matches what the ad promised.
That disconnect creates friction. The user arrived with a specific expectation. If the page does not match it quickly, they may leave.
Fix: Match the landing page to the ad and the search intent. If the ad promotes a specific service, the landing page should focus on that service. If the right page does not exist, creating one will usually perform better than sending paid traffic to something “close enough”.
5. Not Tracking Conversions Properly
This might be the most damaging PPC mistake because without accurate conversion tracking, you cannot confidently say what is working.
It is common to see accounts with missing, duplicated, or misconfigured conversions. Forms may not be tracked, phone calls may be missing, or soft actions may be counted as valuable leads.
If the data is wrong, optimisation decisions will be wrong too. Automated bidding strategies also rely on conversion signals, so poor tracking can affect both reporting and performance.
Fix: Audit conversion tracking before making major campaign decisions. Check that meaningful actions such as form submissions, phone calls, purchases, bookings, downloads, or quote requests are tracked accurately and without duplication.
6. Setting Campaigns Live and Walking Away
PPC is not passive. A campaign does not manage itself just because it has been set up correctly.
Competitors change their bids. Search behaviour shifts. Budgets move. Landing pages get updated. What worked a few months ago may not be working now.
The best-performing accounts are usually the ones with consistent management, not occasional checks when something looks wrong.
Fix: Build checks into your campaign management process. Look at search terms, budgets, conversion data, ad performance, landing pages and campaign settings. Good PPC management is not about changing things for the sake of it. It is about knowing what needs attention and what should be left alone.
7. Leaving Disapproved Ads and Dead Keywords in Place
Account hygiene is not glamorous, but it matters.
Disapproved ads, images, logos, sitelinks or other assets should not be left unresolved. They may generate no traffic, reduce available assets and make the account harder to manage.
Low search volume keywords can also create clutter, especially when they have had enough time to collect demand but still show zero all-time impressions.
Fix: Make account hygiene part of your PPC checks. Resolve or remove disapproved ads and assets. For low search volume keywords, allow enough time for demand to emerge, but if they still have zero all-time impressions, remove them and consider broader or alternative keyword options.
A clean account is easier to manage, easier to optimise and easier to understand.
How ExtraDigital Approaches PPC
At ExtraDigital, PPC campaigns are built around clear intent, careful setup and reliable tracking. We do not launch and hope. We set campaigns up to generate useful data, then refine them based on what that data shows.
The basics matter: the right audience, the right page, accurate tracking and enough attention after launch. Whether you are running Google Ads, Microsoft Ads, or paid social campaigns, these checks help reduce wasted spend and improve campaign quality.
If your campaigns are not delivering the results you expected, the answer is not always more budget. Often, it is a clearer strategy, cleaner setup and better ongoing management.
If you would like an honest assessment of your PPC activity, get in touch with the ExtraDigital team. We can review your current setup and identify where the main opportunities are.
Frequently Asked Questions
What is the most common PPC mistake?
Poor keyword targeting is one of the most common reasons campaigns underperform. If the keywords do not match buyer intent, the campaign can pay for clicks that were unlikely to convert.
How do negative keywords improve PPC performance?
Negative keywords stop ads from showing for irrelevant searches. This helps reduce wasted spend and keeps traffic more closely aligned with the campaign objective.
Why is conversion tracking important in PPC?
Without accurate conversion tracking, there is no reliable way to know which campaigns, keywords, or ads are generating real value. Decisions may then be based on incomplete or misleading data.
How often should PPC campaigns be reviewed?
Active campaigns should be reviewed regularly, especially search terms, conversions, spend, budgets and ad performance. Monthly strategic reviews are also useful for spotting wider trends.
Can ExtraDigital audit an existing PPC account?
Yes. ExtraDigital can review existing PPC campaigns, identify issues and highlight practical opportunities to improve performance.
