Vonage SMS: Send, Validate, and Track Messages

This workflow automates sending SMS messages using the Vonage API. Key nodes include Webhook Trigger (initiates via POST), Input Validation (ensures valid action), SMS Data Validation (checks 'to' phone number and 'message'), Sanitize SMS Data (sets defaults for 'to', 'from', 'message', 'type'), Send Vonage SMS (performs API call), Success Response (returns results), and error nodes (General Validation Error, SMS Data Error, Vonage API Error) for handling failures.\n\nSetup Requirements and Configuration: Install n8n from n8n.io for self-hosting or sign up at cloud.n8n.io for cloud setup. Follow prompts or create a cloud account. Obtain Vonage API credentials from dashboard.vonage.com: sign up, log in, navigate to 'API Settings,' and copy the API Key and Secret. In n8n, import the JSON workflow. Configure the Send Vonage SMS node with these credentials under ‘Credentials’ > ‘Vonage API.’ Ensure the API Key and Secret have SMS permissions. Set Webhook Trigger path to ‘vonage-automation,’ configure for POST requests, and add header authentication with a secure key (e.g., ‘Authorization: Bearer your-key’). Verify server resources support API calls.\n\nTesting and Deployment Steps: Test with Postman using a POST request to the Webhook URL. Example JSON: {'action': 'send_sms', 'to': '+1234567890', 'message': 'Hello, test message!'} with an authentication header. Success responses return 200 with messageId, to, remainingBalance, messagePrice, and network. Error nodes return 400 for invalid inputs (e.g., missing 'to' or 'message', invalid E.164 phone format) or 500 for API failures. Check logs for errors like ‘Invalid API credentials’ or ‘Invalid phone number,’ and verify credentials or input format. Activate workflow in n8n. Validate output: ensure messageId and 'to' match input, and remainingBalance/messagePrice are numeric. Debug errors using n8n logs for issues like rate limits, insufficient balance, or network problems.