The most common Google advertising mistakes and their solutions

Google advertising often fails to produce results because a few basic account settings are left incorrect rather than because the platform performs poorly. The most common Google Ads mistakes are failing to set up conversion tracking, enabling broad match without a negative keyword list, leaving the location option at its default, using a landing page that does not match the ad, applying recommendations automatically, failing to schedule ads and mixing the Display Network into a Search Network campaign. The answer to “Why is Google advertising not working?” is usually somewhere in this list, and each mistake has a concrete solution.

This article addresses eight common mistakes individually: the symptoms they show in the account, why they consume budget and how to fix them. Setting names correspond to the wording in the current Google Ads Turkish interface, and explanations are based on Google Ads Help Center documentation. At the end of the article is a review sequence for an existing account.

Why is Google advertising not working? Summary table of mistakes

An advertising account failing to generate the expected demand is generally the result of several small mistakes stacking up. The table below summarizes the eight mistakes, their symptoms in the account and the first corrective step:

None of the mistakes in the table can be solved simply by increasing the budget. On the contrary, adding budget to an account running with incorrect settings also increases the cost of the mistake.

Mistake 1: launching without conversion tracking

A campaign launched without conversion tracking spends without knowing which keyword or ad brings business; among Google Ads mistakes, this is the first mistake that lays the groundwork for the others. Google’s conversion measurement documentation states that conversion data underpins both identifying the most successful keywords and campaigns and the operation of Smart Bidding strategies.

The second and more subtle problem is having tracking that is incorrect. Definitions such as page views, every kind of button click or counting the same form twice inflate the figures and direct automated bid strategies toward the wrong goal. A correct setup selects actions indicating genuine business inquiries, such as phone calls, form submissions, WhatsApp clicks or purchases, and tests each through an actual trial before launch. Google requires at least one conversion goal even for Search Network campaigns created without goal guidance; this shows that measurement is not a detail to add later.

Mistake 2: using broad match without a negative keyword list

Broad match shows ads for a wide range of searches related to a keyword’s meaning; without a negative keyword list, part of the budget goes to queries unrelated to the business. The issue is failing to monitor which searches trigger ads rather than broad match itself.

The tool for this monitoring is the search terms report: it shows the searches that actually triggered ads on the Search Network and how those searches performed. Google notes that some terms with insufficient query volume are omitted from the report under privacy standards; the picture in the report is therefore incomplete but sufficient to provide direction. When reviewing the report, ask:

• Is the query related to the product or service the business actually sells?
• Does the query express purchasing intent, or is it a search for information, training or employment?
• Does the brand, model or area in the query match what the business offers?
• Are converting queries present as separate keywords in the account?

In Turkish, inflected forms of a word must also be considered separately in the negative list. Irrelevant queries are added to the negative list, while those generating business are added as keywords in their own ad groups; this cycle is repeated frequently in the first weeks and less often as the account settles.

Mistake 3: leaving the location option as “Presence or interest”

For a local service business, leaving the location option at its default causes ads to appear to people who are not in the target area but are interested in it. According to Google’s advanced location options documentation , the default and recommended setting is “Presence or interest”; this option reaches people in or regularly visiting the targeted location, as well as users showing interest in that location.

This broad setting can make sense for businesses such as hotels, tours or schools that attract customers from other cities. For a plumber, clinic or repair service serving only a specific district, however, someone living elsewhere and searching about the target area is often not a customer. In the same document, Google also recommends “Presence” for advertisers wanting to target only users in specific locations rather than interested people elsewhere.

The setting is changed in the location options section of campaign settings. For location exclusions, the default behavior is “Presence,” meaning people likely to be in the excluded area do not see the ad. After the change, the locations of incoming clicks should be monitored in location reports for several weeks.

Mistake 4: a landing page that does not match the ad

A landing page that does not match the ad is the most typical symptom of an account winning clicks but losing inquiries: users leave when they cannot find the ad’s promise on the page. Sending every ad to the homepage is the most common form of this mistake.

Someone searching for “boiler repair” should see the same service as the ad headline on the first screen; the phone button, service area and a short inquiry form should be accessible without scrolling. Landing pages that load slowly on mobile, are covered by pop-ups or hide a form at the bottom of a long page waste the interest generated by the ad. Technical improvements to page speed and mobile use fall within WordPress speed optimization work.

Mistake 5: applying recommendations automatically and treating optimization score as the goal

Automatically applying recommendations without reviewing them can cause keywords and settings that no one deliberately added to accumulate in the account. According to Google’s auto-apply recommendations documentation , when this setting is enabled, selected recommendation types are applied to the account regularly; applied recommendations can be tracked in the “History” tab and the “Change history” page.

Recommendations available for auto-apply include types that expand targeting. Those requiring particular attention include:

• The recommendation to add broad match keywords
• The recommendation to expand reach with Google search partners
• The recommendation to use Display Expansion
• The recommendation to use targeting expansion
• Recommendations to add new keywords

Optimization score is also often misinterpreted. Google defines it as an estimate of how well the account is set to perform; it does not measure sales or inquiry numbers, and it changes when recommendations are applied or dismissed. Reading recommendations individually and dismissing those that do not match the business’s goals is more valuable than achieving a high score; treating the score as the goal is one of the hardest Google Ads mistakes to notice.

Mistake 6: failing to schedule ads

Without ad scheduling, ads can appear at any hour of the day; calls arriving while the business is closed go unanswered, and the allocated budget is spent without a return. According to Google’s ad scheduling documentation, campaigns are set to show ads “All day” by default.

Ad scheduling determines the days and hours ads appear, and bid adjustments can be made for high-performing periods. The schedule is built around the channel through which inquiries arrive:

• For businesses receiving inquiries by phone, ads are limited to hours when calls can actually be answered.
• For businesses relying mainly on forms, nighttime hours can remain enabled; incoming inquiries are answered first thing in the morning.
• For businesses closed on weekends, those days are either disabled or continued only with ads collecting form submissions.
• Bid adjustments are tested for periods standing out in day and hour reports.

Google states that even with ad scheduling, the monthly spending target follows 30.4 times the average daily budget; a campaign compressed into a short time window may spend more intensively during those hours.

Mistake 7: mixing Display Network and partners into a Search campaign

Failing to check network settings when creating a Search Network campaign causes ads to appear on websites outside search results and traffic of different quality to mix in the same report. Campaign settings have separate checkboxes for including Google search partners and including the Google Display Network.

According to Google’s Display Expansion setting documentation , this option uses unspent Search Network budget to show ads on relevant Display Network websites and apps; ads are generated automatically from Search Network ads. Search Network documentation also notes that clicks from partner websites may not always represent highly targeted traffic.

These settings are not inherently wrong, but users with search intent behave differently from users seeing an ad on a news website. If these networks are enabled in a Search campaign, results are reviewed separately by network; if display advertising is intended, creating a separate campaign with its own budget and measurement provides clearer results. How to compare Google and social media advertising for visually focused campaigns is covered in the Google Ads or Meta Ads article.

Mistake 8: constantly interfering with the learning period

Frequently changing the budget, target or conversion definition in campaigns using Smart Bidding restarts the system’s learning process and keeps results fluctuating. Google’s conversion measurement documentation states that Smart Bidding strategies generally undergo a learning phase lasting 7 to 14 days to collect data and stabilize, and frequent manual changes during this period can reset learning.

Tinkering with an account every day often looks like diligence but has the opposite effect for automated bid strategies. Changes are grouped within a plan, only one main variable is changed at a time, and sufficient time is allowed before evaluating the outcome. Maintenance tasks such as adding negative keywords from search terms are outside this rule and continue regularly.

Review sequence for auditing an account

Google Ads mistakes in an existing account are found more quickly when reviewed in a sequence starting with the most basic settings and moving into detail. The sequence below begins with the points that most affect budget:

1. Measurement: Do primary conversions represent genuine business inquiries, and does each one work?
2. Network settings: Are Display Network and partners deliberately enabled in the Search campaign?
3. Location: Does the option match the area the business serves?
4. Search terms: How many of the queries that triggered ads recently are relevant to the business?
5. Recommendations: Which recommendation types are auto-applied, and what appears in change history?
6. Scheduling: Are ads shown during hours when the business can respond?
7. Landing pages: Does every ad group lead to a page on its own topic that loads quickly on mobile?

This review shows at which stage the advertising loses results; sometimes the issue concerns the advertising channel itself. Whether inquiries can be collected more efficiently through paid search or organic visibility is compared in the Google Ads or SEO article. Ongoing account management, from setup to reporting, is explained in detail on the Google advertising management page.