open the pages manager app in your phone
select the Facebook page you wish you review scheduled post for by tapping on the three lines on top left of your app.
double check to make sure you have the selected the page you are reviewing scheduled posts for.
tap on the box on bottom right.
tap on the scheduled posts
review the post, if it’s a video you will be able to play and watch the video and if there are more than one posts scheduled, you will be able to scroll down and review other posts here too.
You can go ahead and publish the post straight away or reschedule the post to be published at another date & time or simply just let us know and we can publish the post at a time we know gets the most reach for you.