Winappdriver: Unable to start WinApp driver session with Windows 10 UWP applications (Mail, Edge) - This app does not support the contract specified

[vs-odessa]

I'm trying to use WinApp driver for testing some Windows 10 UWP applications - Mail & Edge.
When I start session with app settings, I got error from driver:

 Result StackTrace: 
   at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse)
   at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 
  parameters)
   at OpenQA.Selenium.Appium.AppiumDriver`1.Execute(String driverCommandToExecute, Dictionary`2 
 parameters)
    at OpenQA.Selenium.Remote.RemoteWebDriver.StartSession(ICapabilities desiredCapabilities)
    at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(ICommandExecutor commandExecutor, 
 ICapabilities desiredCapabilities)
    at OpenQA.Selenium.Appium.AppiumDriver`1..ctor(Uri remoteAddress, ICapabilities 
 desiredCapabilities)
    at OpenQA.Selenium.Appium.Windows.WindowsDriver`1..ctor(Uri remoteAddress, DesiredCapabilities 
 desiredCapabilities)
    at Task3_WinApp.WinApp_UWPMailTest.TestInit() in ...
 Result Message:    System.InvalidOperationException : This app does not support the contract specified or is not installed. (Exception from HRESULT: 0x80270254) 

This is a part of my test, the error occurs on the last line:

        DesiredCapabilities appCapabilities = new DesiredCapabilities();
        appCapabilities.SetCapability("app", "microsoft.windowscommunicationsapps_8wekyb3d8bbwe!App"); // Mail
        //appCapabilities.SetCapability("app", "Microsoft.MicrosoftEdge_8wekyb3d8bbwe!App"); //Edge
        appCapabilities.SetCapability("deviceName", "WindowsPC");
        session = new WindowsDriver<WindowsElement>(new Uri("http://127.0.0.1:4723"),

The same code with different applications works fine (for example with Microsoft.WindowsCalculator_8wekyb3d8bbwe!App)

[vs-odessa]

Solved:
Windows 10 UWP apps has different app id schema for a different applications. For example, suffix !App works for Calculator & Photos, but you may need to use other for different apps:
for Mail: Microsoft.WindowsCommunicationsApps_8wekyb3d8bbwe!Microsoft.WindowsLive.Mail
for Edge: Microsoft.MicrosoftEdge_8wekyb3d8bbwe!MicrosoftEdge

The full list of product IDs in Windows 10 you can find here:

https://docs.microsoft.com/en-us/windows/configuration/mobile-devices/product-ids-in-windows-10-mobile