First things first, login to your TrustAds account.
There are two ways to access the Lookalike Audience Creator:
Select the blue Create New button and select Audience from the dropdown
Here's how to create your lookalike audience(s) in TrustAds:
Select the ad account you want to create a lookalike for, this will bring up a list of your available custom audiences.
This is the custom audience from Facebook that you're looking to find more of.
This is the country (or countries) you wish your lookalike audience to be based in.
This is based on the number of percentage points available. As you can create a lookalike audience between 1-20% closeness match, you can choose between 1-20 here.
If you select 20, one audience at every % closeness match will be created.
If you selected multiple countries, choose whether you want to:
This will create a separate lookalike for each country you've chosen.
e.g. if you've selected to create 2 audiences, and chosen both USA and Canada from the country dropdown - 4 audiences will be created (2 audiences within USA, 2 audiences within Canada)
This will create a lookalike that combines the countries you have chosen.
e.g. if you've selected to create 2 audiences, and chosen both USA and Canada from the country list - 2 audiences will be created (2x audiences across USA and Canada)
Depending on the number of audiences you've chosen to create, you can now use the slider (and/or quick selection dropdown) to select the % closeness match to your source.
A 1% audience will be more closely matched to your source, with a smaller resulting audience.
A 20% audience will be more broadly matched to your source, with a larger resulting audience.
Once you've chosen your desired lookalike settings, check everything looks good - you can double check which audiences will be created under Resulting Audiences.
Happy? Then hit that green + Create button and your lookalikes will be created and saved to your ad account.