Welcome to my Olist E-Commerce Sales Analysis Dashboard Project! π This project dives deep into real-world e-commerce data from the Olist platform (Brazil), transforming thousands of transactions into interactive Power BI insights that visualize sales, orders, customers, delivery times, and product performance across Brazil. π§π· The goal was to create a comprehensive, business-ready Power BI Dashboard that helps companies understand customer behavior, profit trends, and regional performance, ultimately empowering data-driven decision-making. πΌπ
E-commerce businesses generate massive data daily β from customer orders to shipping and payment details. Through this project, I aimed to uncover key patterns and insights from Olistβs multi-dimensional dataset, focusing on:
- β¨ Understanding sales & profit across different product categories, payment types, and customer states.
- β¨ Analyzing delivery performance and identifying delays or regional bottlenecks.
- β¨ Tracking order status distribution, payment trends, and average freight costs.
- β¨ Discovering which regions and product types drive the most revenue and growth.
- β¨ Building an interactive Power BI dashboard using advanced DAX calculations and data modeling. By connecting insights to business goals, this dashboard delivers strategic clarity for e-commerce success. π‘π
- πΉ Perform data cleaning, transformation, and integration from multiple CSV files.
- πΉ Conduct exploratory data analysis (EDA) to understand sales, geography, and customer segments.
- πΉ Create a data model with relationships across orders, items, products, payments, and customers.
- πΉ Design interactive visuals and KPIs for executive-level reporting.
- πΉ Develop DAX measures for profit, sales trends, delivery performance, and payment behavior.
- πΉ Build a modern Power BI dashboard with slicers, filters, and custom charts.
- πΉ Extract meaningful business insights to guide strategic e-commerce decisions.
- KPI Cards π
- Donut & Bar Charts π
- Line & Area Charts π
- Map Visuals πΊοΈ
- Tree Maps π³
- Tables & Filters ποΈ
The Olist dataset consists of multiple CSV files containing detailed transaction-level data, including:
- π¦ Orders Data β Order IDs, purchase dates, delivery times.
- π€ Customer Data β Location, customer IDs, and state.
- π° Payment Data β Payment types, installments, and total values.
- π Order Items β Product categories, prices, and freight charges.
- π·οΈ Products Data β Category details and dimensions.
- π Review Data β Customer satisfaction and feedback scores.
- Imported all CSV files into Power BI.
- Handled missing values and duplicate records.
- Merged multiple tables using Power Query Editor.
- Standardized column names and data types for accuracy.
- Built relationships between orders, customers, items, and payments tables.
- Created calculated columns (e.g., Delivery Days, Profit Margin, Total Price).
- Used DAX measures to compute KPIs like Total Sales, Average Delivery Time, and Revenue by Region.
- Explored regional sales patterns across Brazilian states.
- Analyzed top-selling categories and most profitable segments.
- Investigated customer payment behaviors and installment trends.
- Visualized delivery time performance to identify delays.
- Compared sales trends over time to spot growth seasons.
Designed a multi-page Power BI dashboard featuring:
- β KPI Summary Cards (Total Sales, Orders, Customers, Profit)
- β State-wise Map Visualization for regional sales πΊοΈ
- β Category & Product Performance Charts π
- β Payment Type Distribution Donut Chart π³
- β Delivery Time Analysis Line Chart π
- β Interactive Filters for Month, Category, and State ποΈ
Key discoveries from this dashboard include:
- π Top-performing categories: Electronics & Construction materials.
- π Most active customers: Concentrated in SΓ£o Paulo & Rio de Janeiro.
- π³ Payment insights: 77% of payments occur on weekdays.
- π Time-based trend: Sales peak between MarchβMay 2018.
- π Delivery insights: Average delivery time of 12β15 days across states.
- π° Profit distribution: Majority from high-value urban regions.
- π Power BI Dashboard β Olist_Ecommerce_Analysis.pbix
- π Cleaned & Transformed Dataset β Olist_Cleaned_Data.xlsx
- π Insight Report (PDF/Docx) β Olist_Ecommerce_Report.pdf
This project demonstrates the power of Power BI and data analytics in transforming complex e-commerce datasets into clear, actionable business insights. By leveraging data modeling, DAX, and dynamic visualizations, I was able to build an interactive analytical tool that helps businesses:
- β Identify profitable regions & products
- β Understand customer payment behavior
- β Improve delivery efficiency
- β Enhance marketing & operational decisions This journey strengthened my data storytelling and Power BI development skills β proving that with the right tools, data truly speaks for business success! π¬π

