Frustrated with wasting your time looking around on Facebook for how the hell to delete a post on a business page? You’re not alone and all the Facebook help pages are totally useless. If you’re looking to delete Facebook Business Page posts using Business Manager, this is how you do it.
It’s simple really, once you know how to do it.
There are two ways to do this:
1) From your Page, click on the Settings link then scroll down to the Activity Log on the left. From there you will see your posts and be able to delete them accordingly.
2) Go to your Business Manager. You can click on the V drop down from the post. Here’s the link where XYZ is your business page: https://business.facebook.com/xyz/ or go to your Activity Log and delete them from there.