How to add an admin to a Facebook Business Page. Admins can post and help manage your page!
There are currently two versions of Facebook Business Pages and, therefore, slightly different instructions for each. Below you will find both versions to match your needs.
Version #1
1. Navigate to https://www.facebook.com/
2. Click into your business page
3. Click Settings > Page Roles
4. Begin typing the name of the person you are wanting to add as an admin and select their name from the drop-down menu
5. Change the role from editor to admin and click add
Version #2
1. Navigate to https://www.facebook.com/
2. Click into your business page
3. Click Professional Dashboard > Page Access
4. Click Add New> Next
5. Begin typing the name of the person you are wanting to add as an admin and select their name from the drop-down menu
6. Toggle on "Allow this person to have full control" > Give Access
7. The user you invited must accept the request within 30 days for them to be successfully added as an admin