Once you have your business Facebook Page just the way you want it, the next step is inviting your Friends to like your Facebook Business Page. You should customize your Page as much as possible (with posts, photos, and apps) before inviting and sharing it, but if you feel that your Page is ready, inviting your Facebook Friends is next. Follow these steps:
On the Admin panel of your new Page, click the Build Audience button (at the top).
When you click that button, a drop-down menu appears.
Click the Invite Friends link.
A new dialog box appears, in which you can select your personal Facebook Friends to invite them to like your Page.
To select a Friend, click that person’s picture.
Continue clicking until you’ve selected everyone you want to share your Page with.
Notice the Filter drop-down menu. If you have a lot of Friends, you can filter certain selections (by location or shared group, for example) for easier selection.
Click the Submit button.
Your Friends get a generic-looking invitation delivered to their Notifications area.
If you opened a business account instead of a personal account to start your business Page, you won’t see this option to invite Friends listed at all.