I’m the biggest Google fan in the world but I’m writing about this because it confuses/frustrates me all the time. The Google Apps database is a entirely separate entity then the Google user database. So email@example.com e-mail address and password will not work when trying to do anything with Google that isn’t your Google Apps account.
The solution is to simply register your Google Apps e-mail with Google and use the same username and password. I completely understand why the two are desperate but it’s difficult to remember to change the password in both places.
When i refer to your Google account this is the e-mail address and password you’ll enter when you log into anything Google owns such as youtube and anything else they have acquired.
Click here to register your Google Apps account as a Google Account