I've been running Google ads for a client and wanted to use Facebook ads for retargeting people that didn't convert
I installed FB Pixel on the landing page and it tracked 303 people who visited the website
I created a custom audience with it but it says audience size: not available
also, I created a campaign with it and it has been running for about 10 days but it didn't spend any money
Does anyone have an idea why it's not working?