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The Purely Automated Blog

Automation Playbooks for Finance Teams

Long-form, practical guides on finance workflow automation, Power Automate, Python, Streamlit, Excel, AI invoice processing, and reconciliation — written from the trenches of 8+ years building automation systems for finance and operations teams. No fluff. No "5 reasons why automation is important." Just the technical detail and decision frameworks you actually need.

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Recent Articles

Finance Automation · Featured

How to Automate Invoice Processing End-to-End in 2026

A complete playbook on building a touchless AP pipeline — from email ingestion through AI extraction, 3-way matching, approval routing, and ERP posting. Includes architecture diagrams, AI model benchmarks (Claude API vs GPT-4 Vision vs Azure Document Intelligence), and cost math vs packaged tools like Bill.com and Tipalia.

12 min read · May 2026 Read post →
Power Automate

Power Automate AI Builder Invoice Processing — Complete Guide

Step-by-step guide to automating invoice processing with Power Automate and AI Builder: form recognition, PDF extraction, approval flows, and SharePoint integration.

9 min read · May 2026 Read post →
Streamlit · BI

Automated Bank Reconciliation with Python — Step-by-Step Guide

Build an automated bank reconciliation script in Python using pandas: load statements, fuzzy-match transactions, flag exceptions, and export audit-ready output.

7 min read · April 2026 Read post →
Excel

Finance Workflow Automation Examples — Real Implementations

Six real-world finance automation examples: invoice processing, bank reconciliation, month-end close, AR aging, intercompany matching, and automated reporting pipelines.

10 min read · April 2026 Read post →
AI & Document AI

AI Invoice Extraction with Claude API: A Complete Guide

Working code, prompts, and accuracy benchmarks for building an invoice extraction pipeline with the Claude API. Includes batch processing, structured output, and validation patterns.

14 min read · March 2026 Read post →
Python

Python Invoice OCR — Extract Data from PDF Invoices Automatically

Complete Python guide to invoice data extraction: pdfplumber for text-layer PDFs, pytesseract for scanned invoices, and pandas to structure the output into spreadsheets.

11 min read · March 2026 Read post →

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