Facebook showing lower cost data than Looker

[aebedward]

Hi all!

I am a real newbie when it comes to Looker, so I’m hoping someone can point me in the right direction.

I noticed that one of my Facebook campaigns has lower cost data in the FB ads platform than it does in Looker. Only this one campaign is affected, out of hundreds. How can I go about trying to work out why this is? Looker seems to have added an extra 40% to the cost, in the same timeframe. I’m really scratching my head over this one!