// Case studies
RPA for invoice processing, 1,200 vendor bills per month
UiPath bots with exception queue cut manual entry from four FTEs to one reviewer, audit trail for SOX.
By Simplileap · Published May 2, 2025 · 8 min read
A listed logistics company processed ~1,200 vendor invoices monthly, PDF, email, portal downloads, into SAP with four FTEs doing line-by-line entry. SOX audit noted insufficient segregation of duties on manual edits.
Simplileap process mining mapped variants: 14 invoice formats, three approval paths, duplicate vendor IDs. UiPath bots built per stable format with Document Understanding fallback for semi-structured PDFs.
Exception handling: human queue in Orchestrator with reason codes; bot pause on amount variance > 2% vs PO; immutable log export for auditors.
Problems: vendor portal MFA broke unattended bots, scheduled attended windows; GST number OCR errors on scanned bills, India-specific validation regex added.
Outcome: straight-through processing 38% → 81%; FTE redeployed to exception analysis and vendor negotiation; audit finding closed next cycle. Company anonymized, listed logistics.
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