// Case Studies

Outcomes From Recent BI Engagements

Client identity generalized for confidentiality — all figures are real, delivered as an internal BI lead for a European e-commerce retailer.

Case 01

Platform Migration & Cost Optimization

Client

A European e-commerce retailer

Challenge

BI platform on per-user licensing, slow refresh on large datasets, rising costs.

What I Did

Migrated to a centralized Microsoft Fabric capacity model, redesigned the underlying semantic layer.

Result: ~40% reduction in platform cost, 40–50% faster refresh on large datasets.

Case 02

Self-Service Enablement

Client

Same retail organization, internal analytics function

Challenge

Small BI team was a bottleneck for every reporting request.

What I Did

Built a self-service data-citizen program — training, documentation, best-practice forums.

Result: Active self-service user base grew from ~50 to 100+ within a year; reporting backlog dropped.

Case 03

Forecasting for Board Decisions

Client

Same organization, Commercial function

Challenge

Spend allocation decisions made without reliable forward-looking data.

What I Did

Built scenario-based forecasting and predictive models covering demand, seasonality, pricing, and customer profitability.

Result: Models directly informed weekly Commercial Board decisions and €30M+ in marketing-spend allocation.

Case 04

Returns Reporting & Root-Cause Analysis

Client

Same organization, Reverse Logistics function

Challenge

No visibility into why returns were happening or where to intervene.

What I Did

Built a Power BI semantic model and reporting suite tracking returns and root causes.

Result: Return rate dropped ~1 percentage point within 3 months.

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