Next to basic information, the User Edit mode enables you to define the properties of a user.
You can select the appropriate User License from the values displayed in the pick-list.
- Tick one of the boxes to configure the user's read access and write access.
- Click Save when you have completed the configuration.
While emails can be used multiple times, the user name - though in email format, too - has to be unique in the whole salesforce environment. In case the preferred username is not available, you can change the email format ending. For example if email@example.com is not available, try firstname.lastname@example.org or email@example.com. The resulting user name does not need to be a real email address.
To assign permissions to the user please take a look on our Wiki pages about
1.2 Hierarchy and Approver Settings