Financial Document Extraction from Gmail to Google Sheets

Overview Manual financial reconciliation is tedious and prone to error. This workflow functions as an AI Financial Controller, automatically monitoring your inbox for invoices, receipts, and bills, extracting the data using OCR, and syncing it to Google Sheets for approval. Unlike simple scrapers, this workflow uses a "Guardrail" AI agent to filter out non-financial emails (like newsletters) before they are processed, ensuring only actual transactions are recorded. Who is it for? Finance Teams: To automate the collection of vendor invoices. Freelancers: To track expenses and receipts for tax season. Operations Managers: To monitor budget spend and categorize costs automatically. How it works

Help me set up the n8n workflow "Financial Document Extraction from Gmail to Google Sheets" (https://n8n.io/workflows/11290). It uses: Google Sheets, Gmail, Code, AI Agent, OpenAI Chat Model, Google Gemini Chat Model, Guardrails. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.