WitlePlus

The data skills platform
built for data professionals.

Structured courses, real-world projects, and career guidance — built around the datasets, industries, and problems data professionals actually face at work.

Get started
Projects Learning Career Resources Pro unlocks all courses and projects
Audit & RiskBeginner

Detect duplicate vendor payments

A mid-sized retailer suspects duplicate payments are slipping through their AP process. Identify likely duplicates across vendor name, amount, and invoice date.

vendor_payments_2025.csv
1.4 MB · 8,421 rows
vendor_payments_2025.csv · preview
payment_idvendor_nameinvoice_nodateamount_zar
P-2841Meridian LogisticsINV-448202025-01-14142,800.00
P-2842Meridian LogisticsINV-448202025-01-14142,800.00
P-2843Vantage ICTINV-772342025-01-1538,450.00
P-2844Crestline HoldingsINV-098122025-01-1522,100.00
P-2845Vantage ICTINV-772342025-01-1638,450.00
P-2846Harlow ServicesINV-304122025-01-169,275.00
P-2847Ashford FinancialINV-889902025-01-1761,000.00
showing 7 of 8,421 rows 2 likely duplicates highlighted

What's inside

Three ways to build your skills.

Most platforms give you one mode. Witle Plus gives you structured learning, applied practice, and career context in one place.

Learning Library

Structured video courses with follow-along datasets. Work through modules in order, track your progress, and download the data you need to follow along.

Browse courses

Real-world Projects

Get a real business brief, download the dataset, and solve the problem your way. Submit your work, earn a certificate, and optionally request expert feedback.

Browse projects

Career Resources

Practical articles on building a data career — from mapping your path to building a portfolio that gets you hired. Free for everyone.

Read articles

How it works

Learn it. Apply it. See how it's done.

You don't get good at data analysis by watching someone else do it.

01

Learn the concept

Start with a focused course module — video, text, and a downloadable dataset to follow along with.

02

Pick a project

Choose a real-world problem tagged to your industry. Download the dataset and read the brief.

03

Submit your work

Do the analysis your way and upload your findings. No prescribed method — your thinking matters.

04

Get your work reviewed

Optionally request a paid expert review for R100. Get direct feedback on your approach and methodology.

Projects

Real-world projects across industries.

Browse all
Audit & RiskBeginner

Detect duplicate vendor payments

A mid-sized retailer suspects duplicate payments are slipping through their AP process. Identify likely duplicates across vendor name, amount, and invoice date — and quantify the exposure.

45 min
FinanceBeginner

Working capital variance analysis

Explain why DSO jumped 12 days in Q3. Use AR aging and customer-level data to attribute the variance.

40 min
MarketingIntermediate

Channel attribution for a 6-week campaign

Compare last-click vs. linear vs. time-decay attribution on a multi-channel campaign. Recommend a budget reallocation.

60 min

Tracks

Courses and projects across every track.

Four skill tracks — Analytics, Engineering, ML & AI, and Governance — each applied across Finance, Marketing, and Audit domains.

Data Analytics

Exploratory analysis, dashboarding, and storytelling with data — turning raw numbers into decisions.

Explore

Data Engineering

Pipelines, data modelling, transformation, and building the infrastructure that makes analysis possible.

Explore

ML & AI

Classification, forecasting, clustering, anomaly detection — and deploying models that actually get used.

Explore

Data Governance

Data quality, cataloguing, lineage, access controls, and compliance — the scaffolding every data team eventually needs.

Explore

Pricing

One plan. Full access.

Register for free, then subscribe to Pro to unlock everything.

Free

R0
forever

Create an account. No content access until you upgrade.

Create account
  • No access to courses or projects
  • No certificates
  • Career Resources articles only

Pro

R269
per month

Full access to every course, project, and certificate.

  • Full access to all courses and tracks
  • Real-world projects across all industries
  • Submit projects and earn certificates
  • Follow-along datasets for all courses
  • New projects added every month
  • Optional expert review for R100/submission

Prices in ZAR. Payments secured by Paystack.

Common questions.

No. Roughly half our content uses Excel or Power BI. SQL, Python, and the AI/ML toolkits all start from zero — you build up gradually through the courses and projects.