Whatsapp & Whatsapp business file sharing

I need to send file and caption in whatsapp and whatsapp business (without number saving)
By using app textbox phonenumber, caption. And file in app… Is it possible…

Use this method :


91 is the country code and X is phone number. Now this link will open WhatsApp chat without saving number.

I want to use whatsapp business and share. File