Replacing a 15-Tab Fragile Spreadsheet with a Bespoke Client Portal
LookADev replaced a fragile 15-tab spreadsheet with a secure bespoke client portal built on Next.js 15 and PostgreSQL with RLS for a UK consultancy, eliminating 100% of billing errors, accelerating invoice approvals by 4x, and saving 15 partner hours per week.
Consultancy managed deliverables, client billing, and project milestones across a fragile 15-tab shared spreadsheet, suffering constant formula corruptions, version sync locks, and 15 hours lost weekly to manual data reconciliation.
£24,000/year in lost partner hours reconciling numbers, plus 20-day average cash collection delays caused by disputed billing line items.
Inherent architectural failure of flat spreadsheets for multi-user concurrency without row-level access control; clients lacked live transparency and staff spent every Friday assembling manual status PDFs.
Secure bespoke client portal built on Next.js 15 and PostgreSQL with strict Row Level Security (RLS). Gives corporate clients a live self-service dashboard to track milestones, sign off deliverables, and view invoices in real time.
Complete consolidation of operational workflows and billing into a secure bespoke web system, eliminating shared spreadsheets, formula corruption, and billing discrepancies.
Zero invoicing discrepancies (100% billing auditability), cash collection accelerated 4x, and full project payback in 60 days.
Invoicing errors reduced to zero, invoice sign-off cycles accelerated 4x, and 15 partner hours per week restored to billable client advisory.
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