I just got this in my mailbox, not sure if it's really working or not, I don't use FB ads.
"So, the trick is to give the Facebook algorithm what it wants: a lot of happy Facebook users behind your ads.
Of course having a shareable ad would help, but a lot of people from India, Bangladesh or Philippines, Thailand or Vietnam are sharing anything that they find interesting!
So here’s what to do!
Create a conversion campaign with purchase objective. Set it up for 4:45 am PACIFIC TIME.
For the same post ID, create a post engagement campaign that is set for at least 5% of the purchase campaign, but set it up at least 5 hours before the purchase campaign starts.
And target only countries like Thailand, Philippines, India, Vietnam and Indonesia, but only people who speak English and have the same interests like the purchase audience.
When both campaigns will be live, the Facebook algorithm will see lots of social interactions to your ads and will drastically reduce your CPM.
That’s how I was able to reduce my CPM from $60 to $8.5. And when you spent 1K a day, believe me, it shows!"