How to text on WhatsApp first?#

There are several ways to send messages to WhatsApp without adding a number to contacts:

1. Sending using a link with the number of the interlocutor
2. Sending from the mobile app
3. Sending via API

1. Generate a link with the number of the interlocutor#

It is required to generate a link in the format https://wa.me/phoneNumber and paste it into the browser line

2. Sending from the mobile app#

• Create a new chat.

• In the search bar, enter the phone number of your interlocutor.

• Click on the "chat" button to start a chat

3. Sending via API#

Use the send methods by specifying the number of your interlocutor in the chatId field in the format phoneNumber@c.us

phoneNumber — full phone number in international format.
Do not use zeros, brackets, or hyphens when entering a phone number in international format.