iTunes Sync Error

If you purchase an application directly through your iPhone, you may get a warning similar to “Some of the purchased items on the iPhone could not be transferred…” when you try to sync with iTunes.

I was able to get rid of this warning by simply going to the iTunes store from within iTunes (not the iPhone) and then clicking the “Buy” button for each app. The app store remembers that you have already purchased the application and does not charge you, but it does download the app to your iTunes library. If you’re a little nervous about buying the same app twice, you’ll get this message instead of the purchase confirmation:

iTunes Confirmation Message

After downloading, you won’t get the error message the next time you sync. Not sure if that’s the correct way to deal with the it, but it seems to solve the problem