Automating Incoming Invoice Processing: OCR, LLM Extraction, and the Pitfalls In Between
Manually keying supplier invoices into an ERP is slow, error-prone, and expensive. Modern document AI promises to fix that — but classic OCR and LLM-based extraction fail in very different ways. A field report on what works, what doesn't, and the traps to avoid when building an invoice pipeline with Python and LLMs.