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Or even better, a mobile app install ad on mobile and a FB app ad on desktop.

I'd love to see one of these experiments that isn't trying to get website signups / sales which is something FB is notoriously bad for.

I spent a few years at an SPMD, and I would really advise against anyone who doesn't know exactly what they're doing to use the FB self-serve anyway...

Thanks, I will give this a try and retest!

You don't have to use power editor, you just have to update the Targeting to desktop only.

I could not find this option anywhere, but I think I see how to do it now, going to give it a try, thanks!

Very useful info. Thanks for posting.