Скачать или смотреть What is Reach and Frequency? Facebook Marketing and advertising reach and frequency explained.

On Facebook, reach and frequency buying types is an option that advertisers can choose from when creating an ad campaign.

Reach campaigns are designed to maximize the number of people who see an ad. Advertisers using this type of campaign want to get their message in front of as many people as possible, even if some people may see the ad multiple times.

Frequency is focused on reaching a specific audience with a specific message as many times as possible.
Advertisers can use Facebook's targeting options to specify the audience they want to reach with their ad, and can also set a budget and schedule for their campaign. Depending on their goals, they can choose to optimize their campaign for reach or frequency.

In general, reach and frequency Buying types are good choices for advertisers who want to get their message in front of a large number of people, and want to show their specific message again and again.