Facebook targeting method cm , utm6

We think this means
Custom Audience
Confidence
high

Why do we think that?

Custom Audiences are a method of targeting Facebook ads that involves the advertiser uploading a list of people or email addresses they wish to reach with their ads. Facebook matches these against Facebook users who form the “Custom Audience” for the ad.

Used in 220,958 adverts with a spend of $33,917,508

Count Spend