To use the Wallet API in your app, you must add the ID_CAP_WALLET capability to your app’s WMAppManifest.xml file.
If you are using the payment instruments API, presented in the next section, you must also add the ID_CAP_WALLET_PAYMENTINSTRUMENTS capability.
If you are using Near Field Communication (NFC) for financial transactions (not covered in this chapter), the ID_CAP_WALLET_SECUREELEMENT capability must also be present.
To submit an app to the marketplace that uses ID_CAP_WALLET_SECUREELEMENT or ID_CAP_WALLET_PAYMENTINSTRUMENTS, you must request that special permission be applied to your developer account. Visit the Windows Phone Dev Center, at https://dev.windowsphone.com/, for more information. ...