Automating 45,000 Monthly Invoices & Multi-Currency Ledger Reconciliation for a Global SaaS
Engineering an intelligent document processing pipeline that extracts complex multi-lingual vendor invoices with 99.4% precision.
Zero-error validation across line items, tax IDs, and bank IFSC/SWIFT codes
From 12 business days of manual review down to 3 minutes per invoice
Strict deterministic arithmetic validation before general ledger posting
The Bottleneck
The Operational Challenge
Vendor invoices arrived in over 400 distinct document layouts—unstructured PDFs, mobile photos, and scanned papers—defeating traditional OCR template tools.
Manual verification of GSTIN/VAT numbers, PO matching, and FX currency conversions caused frequent ledger discrepancies and delayed month-end closing.
Strict corporate audit controls demanded immutable tracking for every approved invoice and full compliance with SOC 2 Type II data isolation.
The Engineering Fix
The Sodiac Architecture
Deployed Sodiac Vega with layout-aware multimodal document parsing that handles irregular table boundaries, skewed scans, and handwritten signatures.
Engineered an automated 3-way matching engine connecting invoice line items against purchase orders and warehouse goods-receipt notes in NetSuite.
Built a deterministic math verification layer: every subtotal, tax calculation, and currency exchange is verified via hardcoded Python rules before posting.
Implemented a clean supervisor review queue for low-confidence scans (<0.92) with bounding-box visual diffing.
System Architecture
4-Step Technical Execution Pipeline
How data, deterministic business logic, and responsible AI guardrails execute in production.
Multi-Source Document Ingestion
Monitors dedicated accounts-payable inboxes, vendor portals, and AWS S3 buckets, deduplicating files via cryptographic SHA-256 hashes.
Multimodal Semantic Key-Value Extraction
Extracts invoice numbers, dates, tax IDs, line item breakdowns, and bank details without rigid coordinate templates.
Deterministic Math & 3-Way Match
Validates line items against NetSuite POs and executes exact tax arithmetic. Flags discrepancies exceeding ₹100 / $1 for review.
NetSuite General Ledger Sync & Audit Log
Pushes verified bills into NetSuite with attached original PDF and immutable audit trail recording extraction metadata.
“Sodiac Vega gave our finance team superpowers. What previously took a team of 14 people two weeks of manual data entry every month now happens automatically with higher precision and full audit readiness.”
Quantified Impact
Verified Production Outcomes
Audited 90-day operational impact after migrating to the Sodiac platform.
Invoice processing throughput increased from 35 invoices per agent/day to 600+ invoices per day.
Month-end accounts payable financial close compressed from 9 days to 36 hours.
Zero erroneous vendor overpayments or double payments recorded across 180,000 processed bills.
Enterprise audit compliance passed with 100% data traceability and tamper-evident logs.
Technology stack & proprietary products
Products Deployed
Underlying Technologies
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