Different greeting in Viber Bot?

Question

PHP

Good afternoon.
When developing bots on Viber, the question arose whether it was possible to somehow set a different greeting text for the user, depending on which link he came from. Is it possible to pass some parameter there?
By "welcome text" I mean the information that will be shown to the user as soon as he enters the channel.
Thank you.

Answer 1

Found solutions myself. Who might be interested, you can just pass
viber://pa?chatURI=&context=&text=
context - well intercepted.