title: Invoice Approval Workflow
| status: active
---
goal: Route invoices through the correct approval chain
  Ensure every invoice is properly validated, approved within SLA,
  and recorded for accounting.
---
step: Receive invoice
| tool: accounting.parseInvoice
  Parse the incoming invoice. Extract vendor name, amount,
  currency, line items, and due date. Validate format.
---
step: Match to purchase order
| tool: accounting.matchPO
  Look up the related purchase order. Verify that the invoice
  amount matches the PO amount within a 5% tolerance.
---
gate: Amount within budget
| condition: invoice amount under department quarterly budget
  Check the department's remaining quarterly budget.
  If the invoice would exceed the budget, flag for CFO review.
---
step: Route to approver
  Route based on invoice amount:
  *Under $1,000* — auto-approve and record
  *$1,000 to $10,000* — department manager approval
  *$10,000 to $50,000* — VP approval required
  *Over $50,000* — CFO approval required
---
gate: Approval received
| condition: approver signs off within 48 hours
  If no approval within 48 hours, send a reminder.
  After 72 hours, escalate to the next level approver.
---
step: Process payment
| tool: accounting.schedulePayment
| emit: invoice_approved
  Schedule the payment for the due date. Record the approval
  chain, timestamps, and any notes. Update the budget tracker.

Invoice Approval

Invoice routing through approval chains with budget checks and auto-escalation.