How Do I Obtain A Custom Audience To Use On Facebook?

Hi,

In the video explaining custom audiences, I assume the one used in the video is for those selling John Crestani’s courses.

I’m selling a different product from a different niche. Is this something I can ask the vendor for, or would that be a privacy violation? I just want to be sure before I approach them for customer information.

Also, Ilya mentioned the 3 niches/product types where he suggested not to start with, as my first product until Facebook is more comfortable with me.

Mine is a weight loss product. Otherwise, he suggests it’s more likely that my ad may not get approved with it not being my first product being advertised with them.

However, I do have a Facebook ‘brand page’ that I’ve used to ‘Promoted’ 2 of my products that I currently sell on Amazon, which is a little different from advertising as an affiliate marketer.

Does anyone know if that would be sufficient? It’s just a page that I post random articles and links to topics pertaining to what I’m selling on Amazon, and often times including a direct link to my Amazon listing.

Thanks as always for any insight!