When you have a page you could notice that people do post on your page and you can also stop them from posting on your page. This is all about the settings on your page but by default people’s posts can’t show on your page, you can learn more about this with our post on how to control who can post on your page.
When people post on your page it requires you to approve these posts so at default it remains pending till you take an action. Remember you must be an admin to have the authority to do this.
How do I approve a post on my page
If you choose to review posts, posts by others will be hidden from your Page by default.
To approve a post, go to the Posts by Others section of your Page’s activity log.