Unveiling the Story of Customer Churn Through Data Visualization for a telecommunication company

Reddysakshi
5 min readDec 14, 2023

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In the fast-paced world of modern business, understanding why customers are leaving your company is essential for its growth and long-term success, particularly in the highly competitive telecommunications sector. To achieve this understanding, we’ve harnessed the capabilities of Tableau, a powerful data visualization tool. With Tableau, we’ve created a series of interactive and informative dashboards that delve deep into the reasons behind customer departures and provide valuable insights that can drive actionable solutions.

These dashboards serve as a visual narrative, simplifying complex data into easy-to-grasp visuals that tell the story of customer churn within our organization. They not only pinpoint the specific factors that contribute to customer attrition but also offer practical recommendations on how to mitigate this challenge.

Through these visualizations, we gain a clear picture of customer behavior and identify trends, patterns, and pain points that lead to churn. This information empowers us to make informed decisions and take proactive measures to improve our services, retain customers, and enhance their overall experience.

The Dataset

We began our analysis with a dataset from Kaggle, containing 27 attributes for 6,687 customers. These attributes provided a thorough view of customer profiles, including demographic information, contract specifics, and reasons for churn. It was a synthetic dataset, but no less valuable for understanding the patterns of customer behavior.

Cleaning the Dataset

The first step that we took involved data cleaning, a crucial step to ensure accuracy in our analysis. Using Python, we sifted through the data to remove duplicates, fill in missing values, and correct outliers. This process was akin to preparing a dataset that would be used for our further analysis.

The Design Process

Deciding on the types of charts was a pivotal part of our design process. We needed to choose visual representations that would not only convey the complexities of the data but also be intuitive for viewers. The design process was iterative, with continuous refinement to ensure that each chart communicated effectively.

Dashboard 1: The Overview

The first dashboard served as an overview of our analysis. It highlighted that out of 6,687 customers, 1,796 had churned — a churn rate of 26.86%. A horizontal bar chart illustrated the specific reasons for churn, revealing a narrative where competitive offerings, pricing, and service dissatisfaction were the chief culprits.

We also included a pie chart to categorize churn into broader segments like ‘Attitude’, ‘Competitor’, and ‘Dissatisfaction’, providing an immediate visual grasp of the predominant factors. A geographical map underscored the churn distribution across states, with some areas dramatically more affected than others — California’s churn rate stood out at 63.24%.

Dashboard 2: Demographics

In our second dashboard, we dove into the age-related demographics of churn. A dual-axis chart consisted of the number of customers in each age bracket with their churn rates, giving insights on how age influences customer loyalty. The visualization revealed a surprising insight: the highest churn rate was not among the youngest or oldest customers, but those in the middle of the age spectrum.

Dashboard 3: Payment Method & Contract Type — Financial Insights into Churn

Our third dashboard explored the financial dimensions of churn. Through a scatter plot, we plotted the churn rate against the average account length, with different payment methods as variables. This allowed us to see, quite literally, where money matters. For instance, customers with ‘Month-to-Month’ contracts and ‘Paper Check’ payments had the highest churn rate, suggesting a correlation between billing methods and customer retention.

The Power of Visuals: Tableau’s Role

Tableau was our chosen tool for its ability to transform raw data into a visual feast. Its interactive dashboards allowed users to filter and drill down into specific data points, making the exploration of data both engaging and insightful.

User Feedback

The user interviews conducted to assess customer churn data visualizations yielded several significant findings. In the Pie Chart, three primary reasons for customer churn were consistently identified as Competitor, Attribute, and Dissatisfaction. Users assessed the impact of these reasons by comparing the size of the bubbles, with Competitor being the most substantial factor. In the Horizontal Bar Plot, specific churn reasons were ranked based on frequency, with “Competitor made a better offer,” “attitude of support personnel,” and “price too high” emerging as the leading reasons. The length of each bar in this plot effectively conveyed the severity of each churn reason. On the Geographical Map, California consistently had the highest churn rate, easily distinguishable by its distinct color. The Dual-Axis Chart revealed age groups correlated with high churn rates, with “Age bin (85)” having the highest rate and “Age bin (15)” the lowest, while age bins between 20 and 55 maintained an average churn rate of 29%. Lastly, Scatter Plots and Group-wise Analyses allowed users to analyze the relationship between contract types and churn rates, with “month-to-month” contracts having the highest churn rate and “two-year” contracts having the lowest.

The Main Takeaways

Our analysis yielded several key insights:

1. The Competitive Edge: Customers often left for better deals and services offered by competitors. This finding underscores the need for continuous market analysis and competitive pricing strategies.

2. The Price of Service: Dissatisfaction with the cost and quality of service was a significant churn driver. This highlights the importance of value-for-money in service offerings.

3. Demographic Dynamics: Middle-aged customers showed higher churn rates, suggesting that this demographic might be more sensitive to market trends or service quality issues.

4. Contractual Commitment: Longer contract terms correlated with lower churn rates, indicating that customers value stability or are dissuaded by the penalties of early termination.

Discussion Points for the Audience

These findings open several avenues for discussion:

· Competitive Strategy: How should telecom companies adjust their offerings in light of competitor-driven churn?

· Service Value: What balance should companies strike between service quality and cost to minimize churn?

· Targeted Retention: How can telecom companies tailor their retention strategies to different age groups?

· Contract Structure: Should telecom companies reevaluate their contract structures to encourage longer commitments?

Final Thoughts

The journey from raw data to refined insights is a testament to the power of data visualization. Our dashboards not only shed light on the ‘what’ and ‘why’ of customer churn but also sparked critical questions on how to address it. For telecom companies, this analysis is a stepping stone to more nuanced customer retention strategies, better service offerings, and ultimately, a more robust bottom line.

The conversation doesn’t end here, though. Each statistic is a starting point for dialogue, and each insight is an invitation to explore deeper. We encourage you to engage with the data, challenge our findings, and bring new perspectives to the table.

Video Link: https://youtu.be/wg8sP3-86es

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