Connections: You can target or exclude people who have an existing connection to your Facebook Page, your app, or an event you managed. For example, if you want to reach a new audience, your would select “Exclude people who like your Page.” If you want to promote an offer or new product to existing fans, select “People who like your Page” to reach people who already know your brand. You can also choose to target friends of people who have previously interacted with your brand.
For growing businesses like Monday.com, it's a smart idea to pivot off the brand awareness of household names. By filling the Monday logo with Apple's famous rainbow color-way, the ad above captures the attention of Mac users who'd recognize those vintage rainbow stripes anywhere (and could use a new task-management tool that works on their computer). Shopify Facebook Pixel — Facebook Pixel Conversion Tracking For Multiple Stores | #166
You also have the option to select a Custom Audience -- this allows you to target people on Facebook who are in your company's contact database, visited a page on your website that has a tracking pixel, or use your app or game. To learn more about how to set up a Custom Audience on Facebook, check out these instructions. (And for more on the specifics of these criteria, visit this Facebook targeting resource.) How to prepare and market using Facebook Ads