I went through documentation on different websites (including Apple) about the Apple Search Ads Advanced engine. I have an iOS app that I want to promote but I am not sure about the keywords I should choose. I've read that I can start what's called a Discovery Campaign. As I understand it, I start a campaign with Search Match enabled (and no keywords set?) so Apple can discovery keywords for me based on my app's meta data.
I did a campaign with a small budget to test it. After a couple of days, it says my campaign is running but my adgroup status is stuck at "Pending audience size verification". Can anyone explain me what's going on? I am a bit lost as I can't find any infos on this. Do I have to pre-define keywords to get the algorithm started? As this is a discovery, I want to discover keywords so I didn't put any. Or is my CPT max bid too low so it doesn't generate traffic?
Thanks a lot for any insight on this!