I'm using the integration with Firebase. When I try to send a WhatsApp messages. However, despite I follow all the instructions, I keep receiving an error message: "Error: api error(s): Request was not authenticated (code: 2)".
The MessageBird support (now Bird.com) told me that the current integration with firebase is the previous solution which does not accept new users from Bird.com's side. This way, I'd like to suggest MessageBird.com to remove or maybe update it to the new solution available on Bird.com.