19055: Channel update failed: invalid JSON or non-updatable field

This error occurs when your channel update request contains invalid JSON or includes fields that this endpoint does not allow you to update. When you update a channel, only type, description, and is_primary are supported.

• Your request body contains invalid JSON syntax.
• Your request tries to update fields other than type, description, or is_primary.

• Send a valid JSON payload in your channel update request.
• Remove unsupported fields from the request body. Update only type, description, or is_primary.

• Contact API
• Compliance Toolkit for Programmable Messaging
• Consent Management API