asking about admobs

 i am working on a project and want to add admob in my project

I am just confused that do i need to upload my app into google play market and iOS store to get the ad unit ID even though i am still working on the admob code in my projects

and after finish these code how can i transfer these code to android  file or iOS  file  to upload to market ???

 

You do not need to have your app in the play market or app store to get your ad unit id

You do not need to have your app in the play market or app store to get your ad unit id