Facebook has released a new video and and data release on how the system chooses which ads to show on Facebook and Instagram.
Although not the most technical post it is really useful if you are considering using the channel or are new to the system.
The video which I will link to gives a really good round approach to the system and answers some of the common questions I am commonly asked about running these types of ads.
It easily explains some of the metrics the system uses such as ‘ad quality score = bid x est. action rate + and quality’.
There are some interesting points on how to understand what has led to you seeing and ad. The “Why Am I Seeing This?” link can explain the detailed targeting options that an advertiser has used to target the ads, if off-facebook activity has been used it is explain how this data can be removed for your account.