How to use PHP to create chats in instant messengers (except telegram) in separate groups?

Question

API

Hello colleagues. I did not find a solution on the network, maybe someone came across.
Given: A platform for buying and selling. There are mobile sellers and there are buyers.
Public messenger account.
How to make automatic creation of a group in a messenger with two participants with the assignment of a name to the group by a script.
I know that there is such an opportunity to create a channel in Telegram, maybe someone did it for viber with whatsapp

Answer 1

A request to Google whatsapp api create group gives an example in PHP as the first result.