There are 2 types of Facebook groups, those that allow advertising and those that don鈥檛.
Groups that allow advertising are usually very big groups with thousands of posts a day and your post usually gets buried very quickly.
This is what I would call a spam group.
People simply join to post their opportunities.
And engagement posts are the best way to get attention here.
NEVER DIRECT LINK, no one will ever see it.
Create engagement to invoke curiosity to get people to comment.
This will push your posts out to more people and you will get more results.
This is just one of the many ways you can use Facebook for free traffic.
My friend Manny has put an entire roadmap together for you to leverage Facebook traffic.