WhatsApp’s Click to Chat feature allows you to begin a chat with someone without having their phone number saved in your phone’s address book. As long as you know this person’s phone number, you can create a link that will allow you to start a chat with them. By clicking the link, a chat with the person automatically opens. Click to Chat works on both your phone and WhatsApp Web.

To create your own link, use https://api.whatsapp.com/send?phone= followed by the person’s full phone number in international format. Omit any zeroes, brackets or dashes when adding the phone number in international format.  Please keep in mind that this phone number must have an active account on WhatsApp.

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

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

To create your own link with a pre-filled message that will automatically appear in the text field of a chat, use https://api.whatsapp.com/send?phone=whatsappphonenumber&text=urlencodedtext where whatsappphonenumber is a full phone number in international format and urlencodedtext is the URL-encoded pre-filled message.

Example: https://api.whatsapp.com/send?phone=15551234567&text=I’m%20interested%20in%20your%20car%20for%20sale

To create a link with just a pre-filled message, use https://api.whatsapp.com/send?text=urlencodedtext

Example: https://api.whatsapp.com/send?text=I’m%20inquiring%20about%20the%20apartment%20listing

After clicking on the link, you will be shown a list of contacts you can send your message to.

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