What are the options for sending notifications from the site?

Question

PHP

Hello!
There is a task: to send notifications from the site to users, for example, about the arrival of a new task. But you need to send notifications to some kind of general conversation. It doesn't matter which messenger, the main thing is that notifications come to the general chat. How can this be implemented?

Answer 1

Take the API of any messenger or social network, call it when adding a new task and write to the general chat - "It's time to work, devils striped"

Answer 2

Most messengers have an API and libraries for this.
For example, telegram https://core.telegram.org/method/messages.sendMessage
whatsapp https://www.google.com/search?q=whatsapp+api+send+...
and so on.