I am a flutter developer and I am trying to build a flutter app to send Whatsapp message just by clicking a button. Right now I am able to open the WhatsApp for a particular contact with a filled text box, but i am not able to hit the send button automatically.
As far as I know this could be done for a Whatsapp Business Account not for a common user. You will need some sort of user interaction to send the messages. You can check information here: https://developers.facebook.com/docs/whatsapp/overview
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