Category and placement targeting on MAI campaign
Our mobile app install campaigns encountered in the past few days with a huge decrease in spend on display campaigns where the targeting method is categories or placement. Moreover, when I check the campaigns on the AdWords interface I see that when I chose a category from the list (android Play Store for example) it says "No Data", where usually it shows the impressions I'm supposed to get if I chose to target this category.
I think that there is a problem with the system, but no one on the AdWords support knows about it. Is anyone here encountered something similar? This is very unusual to us.