InvoiceBot
AI-powered invoice processing with 97% accuracy
The Challenge
A German fintech received 500+ supplier invoices monthly in various formats (PDF, scanned images, emails). Finance team spent 2 hours per invoice manually extracting fields, validating against purchase orders, and booking into SAP. Errors led to duplicate payments and supplier disputes.
2 hours manual work per invoice (total: 1,000 hours/month)
8% data entry error rate causing payment disputes
No validation against purchase orders until after data entry
Invoices lost in email threads and file shares
Month-end close delayed by 5 days waiting for invoice processing
No visibility into processing status or bottlenecks
Compliance risk from non-standard approval workflows
Our Solution
We built an intelligent invoice processing system that handles extraction, validation, approval routing, and ERP booking — reducing human touchpoints by 95%.
Technical Approach
Email ingestion with automatic invoice detection
OpenAI Vision API (GPT-4o) for structured data extraction from PDFs and images
Confidence scoring for each extracted field (reject if < 90% confidence)
PO matching with fuzzy logic for vendor names and amounts
Approval workflow engine with dynamic routing based on amount thresholds
SAP ERP integration via REST API for automatic booking
Human-in-the-loop dashboard for low-confidence invoices (5% of total)
Audit trail with complete lineage from email to ERP posting
Key Features
Smart Extraction
AI extracts 20+ fields (vendor, invoice #, date, line items, tax, total) from any format. Handles multi-page invoices, tables, and handwritten notes with 97% accuracy.
PO Matching
Automatically matches invoices to purchase orders with fuzzy matching. Flags 3-way match violations (PO vs invoice vs goods receipt) for review.
Approval Routing
Dynamic approval workflows based on amount, department, and vendor risk profile. Escalates to CFO for invoices > €10K. Average approval time: 4 hours.
Duplicate Detection
Semantic similarity search across historical invoices prevents duplicate payments. Flags invoices with >85% similarity to past submissions.
ERP Integration
Automatically posts approved invoices to SAP with GL code assignment, cost center allocation, and tax calculation. Real-time sync of posting status.
Audit Dashboard
Complete visibility into processing status, rejection reasons, and bottlenecks. Export audit reports for compliance with German tax law (GoBD).
Technology Stack
Results & Impact
"InvoiceBot was a game-changer for our finance team. We went from drowning in paper invoices to having 95% of them booked automatically. Our team now spends time on high-value analysis instead of data entry. The ROI was positive within 3 months."
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