FB Ads + Amazon Attribution Links

I’m having an issue with Attribution links. I started them on the ninth (two weeks ago) and so far, the click tracking is 80% accurate. However, it says I’ve achieved zero sales through FB ads.

If this is true, it’s both good and bad.

Good, because then theoretically, turning off my ads would be a great saving. Bad, because then I don’t have a way to keep scaling sales.

The reason I’m doubting this info is that about two weeks ago, I turned on ads for the UK. Within those two weeks, UK sales went from 2% of revenue up to 22%.

So there appears to be a temporal correlation at least. This doesn’t really help with nutting out what’s really moving the dial here.

It could be just that mythical beast the Amazon algorithm kicking in… or for some weird reason my attribution links are not working.

Any ideas on how to test what’s going on?