Few days ago I submited my first WP 8.1 app on the Windows phone store (it's in the certification stage). Unfortunately, I'm having a bit of a trouble with correct IDs.

In my Microsoft Developer Dashboard, when I go to the "manage application", I have something like this (not exactly like this, but in this format):

**Package/Identity/Name: 11111Keran.zzzzzxxxxxccccccc**

Now, in my Package.appxmanifest file I am forced to put this as an Identity Name:

Identity Name="11111Keran.zzzzzxxxxxccccccc" etc...>

Is this the Application ID? Normally the application ID is a GUID, but I don't have it anywhere stored in any configuration file. I was only able to retrie it using this code:

**var appId = Windows.ApplicationModel.Store.CurrentApp.AppId;**
And it returns me some GUID.

The problem starts when I try to extract the data from the Isolated Storage of my app using this script:

**cd "C:\Program Files (x86)\Microsoft SDKs\Windows Phone\v8.1\Tools\IsolatedStorageExplorerTool"
ISETool.exe ts de [MYAPPGUID] C:\Isolated**

When I provide the GUID that I got from the code, it says the app is not installed, when I provide the identity name (11111Keran.zzzzzxxxxxccccccc) it says that it's not a GUID.

Not to mention I now completely don't know what should I put in the ad configuration for the Microsoft Adveristing in Application ID - should it be the GUID I receive, or the 11111Keran.zzzzzxxxxxccccccc, or will it come once my app is certified? At the moment ads are completely not showing and the code doesn't even go to the errors (I'm using AdMediator control), just black box with nothing in it.

It's a real mess and I cannot find a good tutorial anywhere, so any help and tips will be much appreciated