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I want to send whatsapp message by VB.NET in web browser, not whatsapp application.

What I have tried:

web.Navigate("whatsapp://send?phone=" & 
txtNum.Text & "&text=" & txtMessage.Text.Replace(" ", "+") 
& "")
Updated 13-Sep-23 7:47am

1 solution

You need to use the WhatsApp Business API[^] to automatically send messages. Trying to circumvent that is against their terms of service, and will end up getting your account terminated.
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