It shows error when upload app to app store.
The error is
i) Your app contains non-public API Usage. Please review the errors, correct them and resubmit your application
ii) Apps are not permitted to access the UDID and must not use the uniqueIdentifier method of uiDevice. Please update your apps and servers to associate users with the vendor or advertising identifier introduced in ios6.
iii) If u think this message was sent in error and that you have only used Apple-published APIs in accordance with the guidelines.
Can anyone know kindly help me?