Mobile website “WhatsApp” button to send message to a specific number

Question

A mobile website can be customized to allow users to share a pre-filled message in WhatsApp to a manually chosen contact. As given here it is done using Custom URL Scheme. A

Answer 1

i used this code and it works fine for me, just change +92xxxxxxxxxx to your valid whatsapp number, with country code

<script type="text/javascript">
        (function () {
            var options = {
                whatsapp: "+92xxxxxxxxxx", // WhatsApp number
                call_to_action: "Message us", // Call to action
                position: "right", // Position may be 'right' or 'left'

            };
            var proto = document.location.protocol, host = "whatshelp.io", url = proto + "//static." + host;
            var s = document.createElement('script'); s.type = 'text/javascript'; s.async = true; s.src = url + '/widget-send-button/js/init.js';
            s.onload = function () { WhWidgetSendButton.init(host, proto, options); };
            var x = document.getElementsByTagName('script')[0]; x.parentNode.insertBefore(s, x);
        })();
    </script> 

Answer 2

Official WhatsApp doc Says-:

https://api.whatsapp.com/send?phone=countrycode+phonenumber&text=urlencodedtext

Use: https://api.whatsapp.com/send?phone=15551234567&text=urlencodedtext

Don't use: https://api.whatsapp.com/send?phone=+001-(555)1234567

https://faq.whatsapp.com/en/general/26000030

Answer 3

WhatsApp is now providing a much simpler API https://wa.me/ This isn't introducing any new features, just a simpler way to execute things. There's no need to check for user agent while implementing this API as it will also work with native apps as well as the web interface of whatsapp (web.whatsapp.com) on desktop.

This can be used in multiple use cases

• A Click to chat button : Use https://wa.me/whatsappphonenumber to open a chat dialog with the specified whatsapp user. Please note that the whatsappphonenumber should be a valid whatsapp number in international format without leading zeros, '+', '-' and spaces. e.g. 15551234567

  <a href="https://wa.me/15551234567">Whatsapp Me</a>

• A Share this on whatsapp button : Use https://wa.me/?text=urlencodedtext to open a whatsapp contact selection dialog with a preset text. e.g.

  <a href="https://wa.me/?text=I%20found%20a%20great%20website.%20Check%20out%20this%20link%20https%3A%2F%2Fwww.example.com%2F">Share on WhatsApp</a>

• A Contact me button with prefilled text : A combination of the above two, Might be useful if you want to get a prefilled custom message from users landing on a particular page. Use format https://wa.me/whatsappphonenumber/?text=urlencodedtext

  <a href="https://wa.me/15551234567?text=I%20am%20interested%20in%20your%20services.%20How%20to%20get%20started%3F">I am interested</a>

For official documentation visit https://faq.whatsapp.com/en/general/26000030

Answer 4

As noted by others, the official documentation is available here: WhatsApp.com FAQ: Android -> Chats -> How to use click to chat. The documentation states:

Example: https://wa.me/15551234567?text=I'm%20interested%20in%20your%20car%20for%20sale

BUT! Why don't we try copying that into a new tab in your browser and going there right now?

https://wa.me/text=testtesttesttest

Results: ERROR PAGE NOT FOUND.

What gives???

Fix it easily by using one of THESE format:

https://api.whatsapp.com/send?text=YourShareTextHere
https://api.whatsapp.com/send?text=YourShareTextHere&phone=123

No wa.me domain in this URL!

Answer 5

On android, you can try

href="intent://send/[countrycode_without_plus][number]#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end

replace [countrycode_without_plus][number] with the number,

Answer 6

unfortunately, there is not option to put number in whatsapp protocol. only is possible with parameter ABID (address Book ID), but you must have this contact with specific name to do this. check WhatsApp Documentation