In the admob documentation, it's written that:
An ad unit ID is a unique identifier given to the places in your app where ads are displayed. Create an ad unit for each activity your app will perform. If you have an app with two activities, for example, each displaying a banner, you need two ad units, each with its own ID. AdMob ad unit IDs have the form ca-app-pub-XXXXXXXXXXXXXXXX/NNNNNNNNNN.
With the example:
<string name="banner_ad_unit_id">ca-app-pub-3940256099942544/6300978111</string>
I have a few activities that will use banners ads. For each banner, I'll use a different string name for sure (i.e banner_ad1_unit_id, banner_ad2_unit_id...). My question is:
- I guess I should change\invent the digits to be unique for each banner. Can I change all the digits of "3940256099942544/6300978111"? (without changing the beginning of "ca-app-pub-") or must I change only the digits of "6300978111" or specific ones?
I am asking because in some activities I may want to use 2 banners and in others I'll use only one.