What happens when you order
You put your link in the box and press the button. The next screen opens with it already filled in. You choose how many followers you want, pay, and the order starts after that.
Where to find it
Open the profile or company page and copy the address bar. Both /in/ and /company/ addresses are accepted.
Check this first
Set the post's visibility to Anyone. Posts limited to Connections can't be reached.
Why order LinkedIn followers
Company pages and creator profiles show follower count right at the top. Recruiters, clients and partners notice it before they read anything else.