Welcome to the Onyx Data October 2025 Challenge!

About ZoomCharts Mini Challenge

🏆 Main Prize: $300 Amazon Gift Card

ZoomCharts Mini Challenge is part of the global DataDNA – Dataset Challenge by Onyx Data, which unites 25K+ data enthusiasts worldwide, ranging from beginners to seasoned professionals, including Microsoft MVPs. Read more about the DataDNA challenge on the Onyx Data DataDNA website. Join the community on LinkedIn.

Why join ZoomCharts Mini Challenge?

1. Workshops & 1:1 Mentoring: Learn directly from experienced Power BI professionals through live workshops on report-building best practices, 1:1 mentoring sessions to review your report and get tailored advice.
2. Get Personal Feedback: Every participant receives detailed, personalized feedback on their report - a great opportunity to improve based on real input from seasoned analysts.
3. Free ZoomCharts PRO License: All participants get a ZoomCharts Developer License (worth hundreds of dollars) that gives full access to the Drill Down PRO visuals library.

🏆 Prize: 

The creator of the best report submitted to the Mini Challenge will receive a $300 Amazon gift card. The ZoomCharts winner will be announced in a special live webinar session on October 29, where we will review the Top 5 entries from the challenge.

Webinars

Learn more about ZoomCharts visuals & gain a knowledge advantage in the contest by joining the upcoming webinars! You'll also get the chance to your ask questions and get expert answers in the Q&A section.

How to participate in Onyx Data DataDNA & ZoomCharts Mini Challenge?

1. Register for the challenge: 

• Register for DataDNA ZoomCharts Mini Challenge using the form above ⬆️
  
• Activate your free Drill Down Visuals Developer License for Power BI. Read license setup instructions.
• Download Challenge dataset from Onyx Data DataDNA Main Challenge website.

2. Build your report in Power BI: 

• Set up an account in Power BI using the assigned license details (if you have participated in ZoomCharts Challenges in the past, you can use the same account you set up before).
• Use the account to access the full library of custom ZoomCharts Drill Down visuals. 
• Use the dataset to build a Power BI report including at least 2 ZoomCharts Drill Down Visuals in one report page. 

3. Improve your report and learn new skills: 

• To learn more about applying ZoomCharts visuals in your reports, participate in the challenge workshop. 
• If you have any questions or need advice, you can book a free individual consultation here.
• Check out the submissions from past challenges for inspiration. 

4. Submit your challenge entry: 

• Submit your report in .pbix format for validation using the form on this page.

If your submission doesn’t match the challenge criteria, you will be notified by email indicating the reason. Don't worry if this happens! You can fix the issue and resubmit your report. 

• Your report will be reviewed within 1–2 business days. Once it’s validated, you’ll receive a Publish to Web link via email. You can use this link to add the report to your portfolio or share it publicly online.
• All validated entries will also receive personalized feedback from the evaluation team via email within 1-2 business days. Use this feedback to revise your report and resubmit it before the deadline.

Note: Feel free to resubmit your entry as many times as necessary before the deadline.

5. Finalize your participation to compete for the prize

• Share a LinkedIn post on your profile with an image, screenshot, or video of your Power BI project showcasing how to interact with the report, including the tags @ZoomCharts and @OnyxData, as well as the hashtags #dataDNA and #builtwithzoomcharts.
• After posting the report on LinkedIn, please submit it to the Onyx Data DataDNA Main Challenge to compete for all prizes.
• Follow ZoomCharts on LinkedIn
• Follow Onyx Data on LinkedIn

6. Attend challenge closing webinar to hear the results: 

• The submissions are evaluated by ZoomCharts team (see "Judging criteria" for more info). The submissions of Top 5 ZoomCharts Mini Challenge finalists are analyzed live during the challenge closing webinar to share the best practices and learning opportunities with the community.
• The author of the best report is rewarded with a $300 Amazon gift card from ZoomCharts.

Technical requirements

• Build your report using only Power BI
• The number of pages in the report is not limited
• At least one report page has to contain a minimum of 2 ZoomCharts Drill Down Visuals. See a practical guide on Drill Down Visuals here

The Brief

Consumer Financial Complaints Analytics Challenge

Step into the role of a data analyst at the Consumer Financial Protection Bureau (CFPB), a U.S. government agency ensuring fairness and accountability in the financial sector.

The CFPB collects complaints from consumers across the United States regarding financial products and services. Each complaint is tracked from submission through company response.

You’ve been provided with a dataset of consumer complaints spanning multiple financial categories, locations, and companies. Your mission is to create an analytical report that identifies patterns in complaints, evaluates company responses, and highlights areas of concern for regulators and consumers.

Questions to guide your analysis:

• When do complaints rise or fall over time?
• Which states and regions are hotspots?
• Which products and sub-products drive the most complaints?
• Which issues and sub-issues are most common or most severe?
• How fast, and how timely are company responses to complaints?
• Which companies show the highest complaint rates relative to market share?
• Do company traits (size tier, reputation, enforcement history) correlate with outcomes?
• Do submission channels differ in response speed or outcomes?

✨ Note: These questions are just starting points. You’re encouraged to explore the data in your own way and share any unexpected findings that could.

Your insights could help regulators strengthen consumer protection policies, support journalists in highlighting financial fairness issues, and provide consumers with more transparency about financial institutions.

Judging criteria

Each report is evaluated based on three main criteria: intuitiveness, insightfulness, and interactivity. These factors ensure that the reports are not only accurate and functional, but also meet the target audience's needs and are ready to be presented to the end-users. 

1. Intuitive: How clear and easy is it to understand the report at a glance? (max 15 points)
   • Is the report visually appealing?
   • Choice of charts and visual elements
   • Does the report tell a story?
   • Is it not overwhelming to the user?
   • Choice of tooltips, titles, and legends
     
     
2. Interactive: How engaging and seamless is the report exploration and interaction with data? (max 15 points)
   • Clear navigation that allows user to explore the report
   • Use of slicers and other interactive elements
   • Smooth cross-chart integration
   • Is report optimized for touch devices?
   • Are tutorials and guiding elements helpful to the user?
     
     
3. Insightful: How accurate, complete, and meaningful is the data in driving decisions? (max 15 points)
   • Depth of analysis
   • Data cleaning and preparation
   • Does data show up accurately in the report?
   • Is report optimized for quicker loading time?
   • Does the report provide deeper exploration of data (drill-down)?

Dataset

My license

1:1 mentoring sessions

You can book a personal session with Senior Product Expert at ZoomCharts, Aivis Pavlovs, to gain practical knowledge about Drill Down Visuals and how they can be used to enhance data storytelling in a report.