Overview

This node checks if a specified phone number has a WhatsApp account using the 2Chat service. It is useful for verifying WhatsApp availability before sending messages or performing WhatsApp-related operations. For example, a user can input a phone number to confirm if it is registered on WhatsApp, ensuring that subsequent communication attempts are valid.

Use Case Examples

1. Verify if a customer phone number is registered on WhatsApp before sending promotional messages.
2. Check a contact's WhatsApp status to decide the communication channel.

Properties

Output

JSON

• phoneNumberChecked - The phone number that was checked for WhatsApp account presence.
• isWhatsAppRegistered - Boolean indicating if the phone number is registered on WhatsApp.
• responseDetails - Additional details or metadata returned from the 2Chat service about the check.

Dependencies

• 2Chat API key or authentication token required to access the 2Chat service.

Troubleshooting

• Ensure the 'WhatsApp Number Name or ID' is correctly selected or specified; an invalid or missing source number will cause errors.
• Verify the 'Phone Number to Check' is in the correct international format (e.g., +5215512345432) to avoid validation errors.
• Check that the 2Chat API credentials are valid and have sufficient permissions to perform the check operation.
• Common error messages may include authentication failures, invalid phone number format, or service unavailability. Resolving these involves verifying credentials, input formats, and network connectivity.

Links

• 2Chat API Documentation - Official documentation for the 2Chat API, including phone number verification endpoints.
• n8n Expressions - Guide on using expressions in n8n to dynamically specify input values.