Used to log in to the selected datasource.
When Single Sign On is not enabled for a datasource, selecting Datasource > Log in opens the Log in dialog for you to manually supply a user name a password for an account in the datasource.
When Single Sign On is enabled for a datasource and you select Datasource > Log in, ProjectWise attempts to log you in to the datasource using the same credentials you used to log in to the operating system. Assuming that your ProjectWise user account is based on your Windows user account, you will be logged in to the selected datasource automatically. If your ProjectWise user account is not based on your Windows user account, or if it is but you are not logged in to the operating system with that account's credentials, the Log in dialog opens.