Frequency: Frequency is how often someone saw your ad. An ideal frequency should vary depending on the type of ad you ran. For example, you’d probably only want someone to see a promoted piece of content once. But it might take multiple views of a Page Like ad before someone takes an action. If any of your ads have a very high frequency but low performance, it may be time to retire the ad.
To post on your Facebook Page, look for the white box below your cover photo that says “Write something …” and simply begin typing. When your update is ready to go (after a proofread, of course), hit “Share Now”. From this field, you can also add a photo or video, tag a product or location, run a poll, or schedule or backdate your post if you so choose. How to prepare and market using Facebook Ads