How to automatically send the first message on VKontakte when a user clicks on a link from a site without using third-party services?

Question

API

Hello.
It is necessary that by clicking on the site, the user is redirected to VK and a message is automatically sent to him on behalf of the VK community.
Since no more automatic mailing is expected, I decided to do without the use of third-party services, such as "Gamayun", using the VK API.
Is it possible to implement this and how?
Thank you.

Answer 1

Can.
Set a standard message in the community settings ("messages" tab).
Next, from the site, redirect the user to the addressvk.me/{community_screen_name}

Answer 2

impossible, because the community cannot initiate a dialogue. The user must write first or allow messages from the community.

Answer 3

as far as I remember - for such block communities?
I just remember how such a project started on Spark and many complained that the community was blocked as a result and the project was closed, although there was also an auto-subscription by clicking on the site. So it’s better to ask VK support again, otherwise it will be too late later ...