Many small business owners make decisions to change ad copy or thumbnails based solely on a hunch that "this might be better." This is especially true when budgets are small, as they feel that a single choice could be a mistake. However, A/B testing is not a tool used only by large companies. Even small shops can start immediately with just one ad or a single line on a product page.

A/B testing is a method of simultaneously releasing two proposals and verifying with numbers which one yields better results. Because it compares actual responses—such as clicks and purchase numbers—rather than subjective feelings, the rationale for future choices becomes much clearer. We have summarized four essential steps that small business owners starting A/B testing for the first time must follow.

First, change only one thing at a time. If you change the title and image simultaneously, you won't know why the results improve, even if they do. You must narrow down the variable to a single one, such as just the thumbnail or just the first sentence, to clearly see if that difference led to improved performance. If you want to change multiple things, determine an order and test them one by one.

Second, divide the groups and allow sufficient time. The principle is to present both proposals to half of the candidates at the same time and under the same conditions. If you try to decide the winner in just a day or two, it is easy to misinterpret differences in day of the week or time of day as differences in performance. It is safer to observe for at least a week, or even longer if the industry has low visitor traffic.

Third, establish benchmark metrics before viewing. You must decide before starting the test whether you will look at click-through rates or whether the results led to actual purchases or reservations. If you view the results without establishing criteria, it is easy to interpret them in a way that aligns with your own preferences. Recording even small numbers serves as data for comparison with the next test.

Fourth, apply the winning proposal and proceed to the next test. A/B testing is not a one-time event, but a habit to be repeated continuously. Set the winning proposal as the default, and then test another option next. If you repeat this process for just a few months, you will develop your own standards built on data, rather than just intuition.

You can get started in four steps without complex tools or a large budget. The ability to send two separate proposals is already included in most ad manager screens, website creation tools, and KakaoTalk Channel messaging functions. The difficult part is not the features themselves, but getting into the habit of changing just one thing and waiting.

Why A/B testing is easier for smaller stores

Large shopping malls with high visitor traffic require complex calculations to obtain statistically meaningful results. On the other hand, neighborhood shops or small online stores have fewer variables to change and simpler metrics to verify, allowing you to experience tangible results much faster. Simply changing a single line of ad copy or a main photo can start to reveal the direction of your next choices.

One thing you can start today

You don't have to try to change everything at once from the start. Choose the specific part of your current ad or product page that you are least confident about and prepare a second version with only that section modified. If you feel overwhelmed designing on your own, you can go through everything step-by-step with Mrs. Lauren, from test design to how to interpret results. Please search for 'Mrs. Lauren' on KakaoTalk and request a consultation.