Mistakes in setting up Google Ads raise costs

Aug 13
5 min read

Updated: 2 days ago

Mistakes in setting up Google Ads raise costs

Introduction

Google Ads are considered one of the most powerful marketing tools that any business can benefit from to reach new customers and achieve direct sales. It gives you the opportunity to appear in front of customers the moment they search for your product or service. However, There's a fine line between a profitable ad campaign and one that quickly drains your budget with no real return.

Many business owners think that simply running an ad on Google will automatically attract customers, but the truth is that setting up the campaign incorrectly may lead to significantly inflated costs without satisfactory results.

In this article, we will discuss in detail the most common mistakes that advertisers make when setting up Google Ads, and how to avoid them, with practical examples and applicable solutions.

Section One: Understanding the basics of Google Ads

Before going into the details of the errors, it is necessary to remember that Google Ads works according to the auction system. That is, the advertiser identifies target keywords and sets bids, while Google chooses which ads appear based on relevance, ad quality, and price per click.

So, every mistake in the choice of words, in the structure of the campaign, or in the targeting settings, is directly reflected in the cost per click (CPC) and cost per acquired customer (CAC).

Section Two: The most prominent mistakes that raise Google advertising costs - setting up Google Ads

1. Target very general keywords

Many advertisers start by using broad words such as:

"clothes"
"coffee"
"restaurant"

The problem here is that these words are generic and attract people who may not actually be interested in buying. The result: increased clicks, but no actual sales.

🔹 the solution: Use long-tail keywords, such as:

"A grilled fish restaurant in Jeddah"
"Specialty coffee delivery in Riyadh"
"Buy Adidas sneakers online"

2. Neglecting to add negative keywords

Negative keywords prevent your ad from appearing for inappropriate searches. For example, if you sell paid products, it would be wrong for your ad to appear when a user searches for “free”.

Without negative keywords, your budget will be wasted on unqualified clicks.

🔹 the solution: Add words like: free, cheap, jobs, PDF… to the list of constantly negative words.

3. Do not divide campaigns according to products or services

Some advertisers put all products or services in one campaign. The result? One ad directed to all categories, which leads to a weak connection between the ad and the keyword, and thus high cost and low Quality Score.

🔹 the solution: Create separate campaigns for each major category of your products, and ad groups for each specific service or product.

4. Generic ads that do not contain a clear call to action

Google Ads are not just random words, they must be specific and motivate the customer to take action. A generic ad like: “Best restaurant in town” will not be as effective as: “Order your seafood now – 20% off your first order.”

🔹 the solution: Make each ad contain:

Special offer.
Explicit call to action (CTA).
Keywords in the text.

5. Not using custom landing pages

One of the biggest mistakes is sending visitors to the site's home page instead of a dedicated display landing page. The user searches for “buy Arabic coffee”, and if he reaches the home page, he may waste his time searching for the appropriate section.

🔹 the solution: Create an ad-friendly, fast-loading, simple landing page with a clear CTA.

6. Ignore conversion tracking

Without tracking conversions, you won't know which campaigns or words actually lead to sales. The result: you continue to blow your budget into ineffective ads.

🔹 the solution: Install conversion tracking via Google Ads and Google Analytics to see which words and pages are most profitable.

7. Choosing inappropriate bidding strategies

Always using the "maximum clicks" strategy may result in a lot of clicks but they don't qualify.

🔹 the solution: Try strategies like:

Target CPA (Target Per Acquisition Cost).
Target ROAS (return on advertising spend).

8. Ads without extensions (Ad Extensions)

Extensions, such as links to additional pages, phone numbers, or geographic location, give the ad more space and increase the likelihood of a click. Ignoring them reduces performance and increases cost.

🔹 the solution: Use the appropriate advertising extensions: website links, calls, location, offers.

9. Inaccurate geographic targeting

Running the campaign on the scale of an entire country while your activity is only local, leads to huge spending on areas that will not benefit from it.

🔹 the solution: Specify precise geo-targeting: city, neighborhood, or even a 5 km radius.

10. Neglecting smartphone optimization

Most searches are done on mobile. Your ad may be great, but if your landing page is slow or not mobile-friendly, you will lose customers and increase your cost.

🔹 the solution: Make sure the page is responsive and mobile-friendly.

11. Leaving the campaign running without constant review

Too many advertisers launch a campaign and leave it unfollowed. The result? Spending budget on ineffective words.

🔹 the solution: Review the campaign at least weekly, and delete words that don't convert.

12. Focus on the wrong metrics

Some advertisers only look at "clicks" or "impressions", when the real goal is... Transfers.

🔹 the solution: Measure ROI (return on investment), CAC (customer acquisition cost), not just CPC (cost per click).

Section Three: How to reduce Google advertising costs in practice?

1. Improve Quality Score

The quality rate is affected by three elements:

Ad relevance to the keyword.
Click-through rate (CTR).
Landing page experience.

The higher the quality rating, the lower the cost per click.

2. Use precise audience targeting

Besides keywords, you can target:

Age group.
Sex.
Devices (mobile/computer).
Specific times of the day.

3. Relying on smart campaigns

Google provides Smart Campaigns supported by artificial intelligence, which help improve performance and reduce costs if your basic settings are correct.

4. Continuous A/B Testing

Don't rely on one ad copy. Create multiple copies and compare the results. You may find that changing a single word or image on your landing page reduces your cost by 30%.

Section Four: Case studies and examples

Local restaurant company: Targeting a generic word like “restaurant”, the cost per click was SAR 6. After converting to specific words such as “BBQ restaurant in Jeddah”, the cost decreased to 2 riyals and orders increased.
Online store: He did not use negative words, so his ads were shown to those searching for “free download.” Adding the negative word “free” reduced costs by 40%.

Conclusion

Google Ads is not just an advertising platform, it is a science and an art that requires precision. Mistakes in setup not only lead to poor results, but can burdensomely raise costs for the advertiser.

If you want to succeed, you must:

Choose keywords carefully.
Uses negative words.
Build clear campaigns and structure.
Results are constantly monitored and modified.

With this, you will be able to transform your advertising from a financial burden into a profitable investment.