Add Facebook Ads Campaign and Ad attribution data to Revenuecat Meta Ads Integration (even without ATT)

Hi Community,

we just implemented the meta ads integration via revenuecat and our events are received just fine by meta.

Now we are trying to get the attribution to our ads and our ad campaigns to work, but I do not see revenuecat sending any data regarding the campaign or the ad in the integration events.

Since it will take a couple of days/weeks as well as money on ads to figure the answer to these questions, is there anyone here who has experience doing meta ads with revenuecat integration, that can maybe already answer the following questions:

Do I have to set this data manually via Purchases.setAd and setCampaign and will revenuecat send this data to meta?
Or is it enough to have the ATT consent of the user and send the madid/idfa to meta and meta will figure out where this user came from? 
And lastly: If setting and sending the ad and campaign data to revenuecat & meta, will it be possible to see that a user came from this campaign without violating that the user has not given the ATT consent?

Would really appreciate if anyone can answer these questions. If I figure anything out on this, I will post it back here.

Kind Regards