Create an organisation text post with make.com

I have used the Create a organisation text post module for and have used the module as suggested in this post

linkedhttps://community.make.com/t/linkedin-post-from-company-page/45133/6?u=ashokvas.

Here is the screenshot of my scenario

I am not clear what permissions and Oauthh needs to be done. Can someone please guide me

Are the “LinkedIn Business” or “LinkedIn Pages” modules available in the free plan or do the paid plans have these extra Linkedin modules?