Resolving WhatsApp 'Invalid Parameter' Error When Sending Messages

Understanding the WhatsApp 'Invalid Parameter' Error

When attempting to send a WhatsApp message through the CRM, you may encounter an "Invalid Parameter" error that prevents the message from being delivered.

Common Cause: Matching 'From' and 'To' Numbers

This error frequently occurs when the phone number specified in the From field is identical to the phone number in the To field. The WhatsApp messaging system does not support sending messages from a number to itself.

Solution

To resolve this issue, verify that the From and To phone numbers are different. If you are testing WhatsApp messaging functionality, ensure you are using a distinct recipient number that is not the same as your sending number.