navan-core-workflow-b

# Navan — Expense Management ## Overview This skill covers the Navan expense reporting workflow through the REST API. The Expense Transaction API requires separate enablement from Navan support — it is not available by default. Once enabled, you can retrieve transaction data incrementally (the TRANSACTION table is append-only, unlike BOOKING which re-imports weekly). This skill provides patterns for expense data retrieval, approval workflow automation, and synchronization with ERP systems including NetSuite, Sage Intacct, Xero, and QuickBooks. ## Prerequisites - Navan account with OAuth 2.0 API credentials (see `navan-install-auth`) - Expense Transaction API enabled by Navan support (submit request via help center) - For ERP sync: active integration configured in Navan Admin > Integrations - Environment variables: `NAVAN_CLIENT_ID`, `NAVAN_CLIENT_SECRET`, `NAVAN_BASE_URL` - Node.js 18+ or Python 3.8+ ## Instructions ### Step 1: Request Expense API Enablement The Expense Transaction API is not self-service. To enable it: 1. Navigate to [Navan Help Center](https://app.navan.com/app/helpcenter) 2. Submit a support request for "Expense Transaction API access" 3. Provide your company ID and the OAuth client_id that needs access 4. Navan support will enable the expense endpoints (typically 1-3 business days) 5. Verify access by calling the transaction endpoint after enablement ### Step 2: Authenticate ```typescript const tokenRes = await fetch(`${process.env.NAVAN_BASE_UR...