Can i post 100.000 wall post in a moment with different 100.000 access_tokens? or is there a top limit? How can i post at the same time with different access tokens I am begining a new project. I have to consider condition while user number is 100.000 not intent using it as spam. Thanks in advance.
Even if you are not intending it to be spam facebook very well might see it as spam. I suggest, rather than sending out hundreds of thousands of posts at once, set up a cron job to send smaller chunks of posts to your users.
To the best of my knowledge there is no limit - but as i said, faecbook have many mechanisms to detect suspicious behavior and you might trigger one when your app is found to be sending out so many posts.