LLM Financial Operations: Contract Management, Billing, Fraud Detection, and Compliance Reporting

This workflow automates enterprise financial operations, including contract management, billing, fraud detection, audits, and compliance reporting, ensuring data protection and regulatory compliance. Key nodes include Webhook for secure data input, Condition for security and input validation, Switch for operation classification, AI Agent for analysis, Set for compliance checks and archiving, and Webhook Response for structured outputs. To set up, download n8n from n8n.io for self-hosting or sign up at cloud.n8n.io. Obtain an OpenAI API key from platform.openai.com and add it under Credentials > Add Credential > OpenAI API in n8n. Import the workflow JSON via Workflows > Import. Configure the Webhook node with path /enterprise-operations, set to POST, and include CORS headers (Access-Control-Allow-Origin: *). Use ngrok for local webhook testing to expose the URL. Ensure HTTPS for secure transmission. Verify the AI Agent nodes use gpt-4o-mini with a temperature of 0.1 and max tokens of 3000. The Condition nodes should check for x-api-key, x-enterprise-authorization, and content size (<100MB). Test by sending a POST request to the webhook with JSON containing data (e.g., contract text), operationType (e.g., contract_management), and organizationId. Include x-api-key and x-enterprise-authorization headers. The workflow sanitizes data, classifies operations, and generates AI-driven analysis. Validate outputs in the Set node for operationalCompliance (e.g., dataProtection: true) and performanceMetrics (e.g., auditScore: 92%). Handle errors like missing x-api-key (401 response with 'ENTERPRISE_SECURITY_VALIDATION_FAILED') or invalid operationType (400 response with 'INVALID_ENTERPRISE_INPUT'). For issues, confirm HTTPS, valid API key, and correct JSON format. Deploy by saving and enabling the workflow, ensuring the webhook is active. Test with sample data (e.g., billing data with organizationId 'ORG123') to verify analysis includes compliance status and action items. Check Webhook Response for success flag, processing time, and archive metadata. If outputs are missing, verify OpenAI credentials and node connections in n8n’s editor.