
Excel ERP System
A practical business operating system connecting inventory, installations, contracts, revenue, expenses, assets and management reporting.
View case study03 / Data Analysis
Clean data models, automated transformations and focused analysis that convert recurring business questions into repeatable workflows.

CONTEXT
THE CHALLENGE
Recurring reports often depend on copied files, broken references and inconsistent definitions. The goal was to move the work from manual repair to a controlled refresh process.
THE APPROACH
Converted external workbook dependencies into refreshable Power Query flows.
Used SQL and structured formulas to isolate clean business logic.
Designed checks for date errors, duplicates and missing identifiers.
Documented assumptions so the analysis can be audited and reused.
WHAT THE SYSTEM ENABLES