AI Workflow Automation in Node.js: Invoice to PO Matching with Claude

说明与用途

使用 Claude 在 Node.js 中自动化发票与采购订单匹配，自动批准匹配的发票，异常发票进入人工审核队列。

问题

Finance teams need to verify invoices against purchase orders efficiently while ensuring accuracy and auditability.

结果

The pipeline reduces manual effort by approving clean invoices automatically while still catching mismatches for audit.

工作流

• 1. Send PDF to Claude with a tool call that returns structured JSON.
• 2. Claude extracts fields (invoice_number, po_number, supplier_name, currency, printed_total, lines, unreadable_fields) exactly as printed.
• 3. Node.js code compares extracted data to the corresponding PO in the ERP.
• 4. If all line items and totals match, the invoice is approved automatically.
• 5. If any mismatch or unreadable field is detected, the invoice is placed in an exception queue for manual review.

证据

Send the PDF to Claude and force a tool call. The answer comes back as JSON that follows your schema, not free text.

来源

Approval is a rule, and a rule should give the same answer every time. A language model is very good at reading a messy layout and working out that "Units" means quantity. It is the wrong place to decide whether a small price difference is acceptable.

来源