ExcelCustom DevelopmentFinancial Services

Excel Financial Consolidation Add-in

A multi-source data consolidation add-in that pulls live figures from three ERP systems directly into Excel, eliminating manual copy-paste across 12 departments.

Client:Confidential — Financial Services Firm
App:Excel
Service:Custom Development
Completed:Q3 2024

The Challenge

A mid-size financial services firm produced monthly consolidation reports by manually exporting data from three separate ERP platforms and merging them inside Excel. The process took a full day per analyst, introduced frequent formula errors, and created version-control conflicts when multiple team members edited the same workbook simultaneously.

Our Solution

We built a task-pane Excel add-in using Office.js that authenticates users against the firm's Azure AD tenant, fetches live data from all three ERP REST APIs via Azure Functions middleware, and writes the consolidated figures directly into named ranges. The add-in enforces cell-level locking to prevent concurrent editing conflicts and generates a timestamped audit trail sheet on every refresh.

Key Results

  • Monthly reporting time cut from 8 hours to under 45 minutes per analyst
  • Eliminated manual data re-entry errors across all 12 departments
  • Processes 50,000+ rows in under 30 seconds
  • Deployed to 80 users with zero change-management training required

The add-in completely transformed our month-end close process. What used to take a full day now runs in under an hour — and our CFO can refresh the numbers himself without waiting on IT.

Head of Financial ReportingHead of Financial Reporting, Confidential Financial Services Firm

Technologies Used

Office.jsTypeScriptReactAzure FunctionsAzure AD (MSAL)REST APIsExcel Custom Functions

Areas of Work

Office.jsAzure FunctionsREST APITypeScript

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