Facebook ad manager & Oculus Store

Hi everyone,

So we launched a VR Game and want to advertise it on Facebook & Instagram. We do that in the Facebook ad manager for our game in the oculus store. The problem is that we can't track if the ads are doing anything at all. We don't see purchases in the Ad manager, although the SDK is implemented.

Do you guys have a solution for this? Shouldn't we see the purchases from our ads directly in the ad manager from facebook?