Facebook: boosting followers
If you want to increase the number of subscribers in your Facebook group, create an advertising campaign "Facebook: join a group".
To create an advertising campaign, copy the link to the Facebook group from the browser.
The link may look like this:
https://www.facebook.com/groups/43689943344394/

Log in to your IPweb account. In the menu on the left, click "Promotion" - "My campaigns" - "Add an advertising campaign" - "Actions on social networks" - "Facebook" - "Facebook: join a group".

Enter the link to the Facebook group and the number of subscribers per day.
For such advertising campaigns to work correctly, you need to approve all incoming requests for membership within 48 hours.
A Facebook group is not a page. If you add this advertising campaign with a page address, the campaign will not work. If you have a page rather than a group, order the campaign "Facebook: like/subscribe to page".
⚠️ Please note that Facebook can unsubscribe some subscribers if they do not match its statistical picture or typical user behavior. Users who are not active (do not like, do not write comments) are at risk. Therefore, we recommend that you use complex tasks for the most "natural" promotion.
How to set up the geography of the issuance and other parameters of the advertising campaign tell here.