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Using A/B Testing to Create Effective Chatbot Strategy

Illustrator: Carmen Casado
chatbot-ab-testing

Please note that 'Variables' are now called 'Fields' in Landbot's platform.

Please note that 'Variables' are now called 'Fields' in Landbot's platform.

It is 2021, and the role of chatbots is getting vital and better with every passing day. Today, the Conversational AI market is growing at an exponential rate! Over 55% of B2B websites already leverage chatbots for boosting customer engagement

While talking about the numbers, as per Cognizant, the global chatbot market will reach a whopping USD 1.3 billion by the fiscal year 2025. 

So, as you read this article, chatbots are trawling through enormous swaths of data and empowering business use cases such as lead generation, content delivery, product ordering, flight booking, companionship, healthcare diagnoses, and more.

Why Are Chatbots Important?

Thanks to clever conversational design chatbots are taking over workflows, servicing customers better, and becoming an indispensable part of businesses. Brands are providing:

Instant Responses: Chatbots bring aboard automation and state-of-the-art features such as real-time interactions, smart responses and thus, enable a seamless user experience. Hence, chatbots dramatically reduce potential churn and customer frustration.

Higher Accuracy: Chatbots eliminate the scope of human error. Often performing the same task time and again can be strenuous for agents. With chatbots, brands can ensure error-free task execution and enjoy the same performance throughout time.

Self-Service: Today, customers like to be in charge. When paired with a conversational interface and instant personalization, self-service takes a whole new level and brings incredible value to the brand. Chatbots today can easily direct customers towards answers. Thus, reducing ticket deflection rates and boosting customer satisfaction manifolds.

What Makes a Chatbot Effective?

Chatbots are emerging as an effective tool to cast a good first impression on the audience and encourage them to become loyal customers. 

Now, the way a chatbot interacts with the audience draws the line between a closed deal and a missed opportunity. A/B testing is one such method that helps you optimize the digital experiences of the audience. 

A/B Testing & Chatbots

A/B testing, also known as bucket testing, is a methodology of running multiple variants of a service or product to check which outperforms the other. In other words, A/B testing helps find the variant of the service or product that encompasses the best engagement & accomplishes the desired goal most efficiently.

Now, in the purview of chatbot applications, A/B testing allows makers to deploy multiple chatbot variants in parallel, test every aspect of the interface & determine the effectiveness of the target feature. Through A/B testing, devs and makers can determine which part of the flow yields more conversion and discover the flow parts that warrant improvements. 

Through effective A/B testing, you can determine pre-sales sequences that have the potential to generate better leads, provide a better onboarding experience that assists customer conversion or discover customer success sequences that lead to higher consumer satisfaction.

In other words, you can determine the efficacy of different onboarding and buy flow scenarios across different variants in your A/B testing pipeline. Thus, calculate drop-off rates and other KPIs (Key Performance Indicators) and make critical changes to boost user experience.

How To Use A/B Testing to Create Better Chatbots?

1. Pick a Platform For A/B Testing

The primary step is to select the right platform on which you can build, test and deploy your chatbots. 

Online, you can find an array of free/premium no-code chatbot-builder & testing platforms such as Landbot.

landbot builder ab test

How to choose the platform depends solely on your needs and custom requirements. Different platforms offer different functionalities to experiment with the characteristics of your chatbot.

Thus, once you decide on a platform, A/B testing can help you conduct randomized trials and determine which variant is better, has better quality assurance & should go to production. 

2. Understand The Customer Journey

While creating the service strategy for chatbot users, you must get to know your customers in detail. Back in the day, getting the attention of the customers wasn't all that difficult. However, today the market is overcrowded and customers are more dynamic, exhibiting an array of shopping behaviors. 

Thus, just like targeted marketing and sales plans, you can also consider including different chatbot A/B testing flow setups. This will help you discover which flow entices the customers the most. 

One may consider asking questions like:

  • What are the common difficulties people face with my product?
  • Which particular part of my product confuses most people?
  • What are common questions or FAQs that customers ask for support?

Once you've all the answers, you can start fine-tuning your chatbot and create a potential, standardized chatbot flow. 

Through A/B testing, you can devise an array of interactive chatbot flows and record which variant churns out more engagement and accomplishes the goal more readily.

3. Pay Attention to Chatbot Funnel

landbot builder chatbot funnel

According to a study by Forrester, most chatbots fail to make it big for a variety of reasons. 

Often creators don't clearly define the chatbot's purpose or set goals that are too ambitious for the existing technology. Now, to boost the effectiveness and viability of a chatbot, you may consider analyzing the chatbot funnel and start monitoring certain factors.

What differentiation factors to choose to monitor performance depends on your case.

For example, if you want to improve the Sales & Marketing of your brand through chatbots, you may consider monitoring the 'Number of Leads Generated’. You may also monitor visual factors such as the chatbot's design, color, fonts, content placement, and conversational factors such as tone of chat for maximum user engagement.

4. Must-Have Monitoring Metrics

How closely you monitor critical chatbot metrics paves the way to user engagement and chatbot success. While AB testing, you may consider measuring key metrics such as:

  • Activation Rate: How long does a customer take to respond to the chatbot
  • Fall Back Rate: FBR or fall back rate is the metric that tells us how often a chatbot fails a task
  • Retention Rate: Number of visitors who return to the chatbot in a specific timeframe
  • Self-Service Rate: How well a chatbot resolves a query without any manual intervention
  • Confusion Triggers: The frequency of your message misinterpretation by a chatbot

5. Capture A/B Testing Data

capture data ab test landbot

Often chatbot testing involves an overwhelming number of A/B test scenarios & metrics. 

To create a near-perfect chatbot flow, developers consider running an array of testing simulations and checking every flow for results. It's necessary to record and analyze the A/B testing results from each scenario.

To effectively capture the results for all A/B tests, you may use ready-to-use templates and record metrics such as Fall Back Rate (FBR), Retention Rate, Activation Rate, User Satisfaction, etc. The practice helps you make sense of the data and aid your AB testing decision-making. You can further visualize this data in the form of graphs, charts and generate valuable visual insights. 

Are you wondering how to make timelines for an effective AB Testing scenario analysis? 

Intuitive-looking, ready-to-use templates help users visualize testing data, compare & contrast between different variants and choose the best performer with added ease.

Final Thoughts

With A/B testing, the end goal is to boost user engagement and hence, the conversion rate. You can come up with a state-of-the-art customer service strategy for chatbots via gathering AB-test data and simultaneously implementing changes in your existing chatbot strategy.

You can also run multiple AB tests on top of each other. The second AB test should run on top of insights gained from the first experience. Thus, by reiterating the strategy, you can achieve the desired Sales & Marketing results in no time. As you read, there are brands out there leveraging AB testing to increase leads, sales and churn out happier customers.

Frequently Asked Questions about Landbot Pricing

What’s a Landbot chatbot template?

There are three ways to go about building a conversational app with Landbot:

1 - Do it all from scratch but still without coding

2 - Use only a few pre-made elements (bricks)

3 - Pick and customize a pre-designed template


There’s no need to reinvent a flow if our conversational experience designers already built a chatbot template for your use case. Before committing to a free sign up or a specific template, you can always use the preview function to try out the end-user experience. When you do load your chosen template, you’ll see the conversational flow all set up for you with guiding notes when needed.

All you have to do is customize the content inside the flow that’s already there. Edit the text, images, gifs, and links in the blocks so they fit your brand and product!

What’s the difference between a chat, a WhatsApp chat, and an AI chat?
  • A chat in Landbot represents a structured conversation between your bot and an end user, following a rule-based flow for web chatbots. It guides the user through specific tasks using buttons, keyword triggers, and decision trees with predetermined responses.

  • A WhatsApp chat in Landbot is a conversation between your bot and an end user on WhatsApp, following Meta’s messaging rules. When an end user messages your bot, a 24-hour window opens, allowing free responses, and the interaction counts as a WhatsApp chat in your Landbot plan. After 24 hours of inactivity, only pre-approved Message Templates can be sent, which you can manage directly in the Landbot platform.

  • AI chats incorporate AI functionalities, leveraging Landbot’s AI feature blocks or AI Assistants for lead generation, FAQs, or appointment booking. This enables the bot to understand intent and provide personalized, real-time responses instead of relying solely on predefined flows. AI chats are tracked and billed separately from regular chats and WhatsApp chats.

What is considered a “seat” in a Landbot plan?

A seat refers to a user license that grants an individual access to the Landbot platform under a specific account. Each seat allows one team member to log in, build, manage, and collaborate on chatbots. The number of seats included depends on your subscription plan, and additional seats can be purchased on all paid plans.

What subscription plans does Landbot offer?
  • Starter: Ideal for individuals and small businesses looking to create website chatbots effortlessly.

  • WhatsApp Starter: Perfect for small teams and businesses automating conversations across websites, Messenger, and WhatsApp.

  • Pro: Great for growing teams that need advanced features, automation, and integrations for website chatbots.

  • WhatsApp Pro: Best for businesses looking to scale customer interactions on WhatsApp with automation and rich messaging capabilities.

  • Business: Tailored for enterprises that require a fully customized chatbot solution with premium support and integrations for all channels.

How does the 14-day free trial work?

New sign-ups to the Landbot platform receive a 14-day free trial with access to all Landbot features and channels. After this period, the account is automatically downgraded to the Sandbox (Free) plan, which has certain limitations. You can upgrade to a paid plan should you wish to continue using Landbot’s premium features.

How is my subscription charged?

Your credit card is automatically charged at the start of each billing period. For monthly plans, the charge is processed on the first day of each new monthly cycle, while for annual plans, it occurs on the first day of the new yearly cycle.

Can I change my subscription plan later?

Yes, you can upgrade or downgrade your subscription plan anytime within the Landbot platform. Changes will be applied according to Landbot's billing policies.

How many chats are included in the Business Plan?

Our Business Plan is fully customizable to suit your needs, including the number of chats, seats, and WhatsApp Business Account numbers. Please reach out to our Sales team for a personalized quote tailored to your requirements.

What happens when I reach my plan's chats limit?

If you go over your paid plan’s chat limit, extra chats will be charged based on the chat type. Regular chats cost €0.05 per extra chat, while WhatsApp chats also cost €0.05 per chat plus Meta’s additional fee. AI chats are €0.10 per extra chat. Business plans have custom pricing for extra chats.

Are there any plans that only include WhatsApp?

No, all of our plans that include WhatsApp (WhatsApp Starter, WhatsApp Pro, and Business) also grant access to other channels, such as web, API, and Facebook Messenger. These additional channels are included in all WhatsApp plans.

Can I add more than one WhatsApp number to my account?

Yes, you can link multiple WhatsApp Business Account numbers to your Landbot account, but the number of WhatsApp Business Account numbers allowed depends on your plan.

What payment methods does Landbot accept?

We accept Visa, MasterCard, and American Express. Bank transfers are only available for Business plans.

What currency will I be billed in?

Subscriptions are billed in Euros (€) for most customers. However, customers in the following countries will be billed in US Dollars ($): Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, French Guiana, Grenada, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Paraguay, Panama, Peru, Puerto Rico, the Dominican Republic, Suriname, Uruguay, the USA, and Venezuela.

Does Landbot use the official WhatsApp Business API? How does the application process work?

Yes! Landbot uses WhatsApp’s official API to integrate the most popular instant messaging app. The API offered by Facebook(Meta) is under constant improvement, the reliability is fantastic and generates a frictionless experience for your users and for your team. To review which type of enterprises, businesses and brands WhatsApp accepts at the moment, please read our WhatsApp API application guide.

Landbot’s onboarding team helps you in the application process. Once you sign up for Landbot’s WhatsApp solution, our team will ask you to submit the required information and initiate the application process on your behalf. The entire process usually lasts around 1-2 weeks, regardless of which provider you work with. We take utmost care to ensure each business we collaborate with has their application approved, managing the application process at every step of the way. However, ultimately, the final approval decision rests with WhatsApp.

Can I start building my bot before my WhatsApp API access is approved?

Landbot’s special WhatsApp Test environment feature allows you to build and test your WhatsApp bot before your API application gets approved.

This is possible because the testing channel is a closed one, and only allows communication between the Landbot interface and the phone number you associated with the test account. So you can already test your WhatsApp bot with your own phone, and have it ready to be published live to your users when the access is approved by WhatsApp.

Do you offer support resources on WhatsApp bot creation?

Yes, you have access to a large collection of support resources including WhatsApp guides, documentation and academy videos to help you get the most out of the WhatsApp chatbot builder and campaign manager. Listed below are some of the resources:

- How to Create a WhatsApp Bot: Step By Step Guide
- How to Create & Test your WhatsApp Chatbot: Video Guide
- Landbot Academy: WhatsApp

What is the WhatsApp opt-in and how does it work?

WhatsApp opt-in is the active consent users have to give you before you can contact them via WhatsApp. Opt-ins need to be done via a third-party channel. You can learn more about WhatsApp opt-ins and how they work here.