How to add new users to your SharePoint site so they can access the portal.
Note: You must first enable the user within the Administrative Control Panel.
1. Login to your SharePoint site with the Administrative Credentials.
2. Click the Site Actions drop-down menu and select Site Settings.
3. Under the Users and Permissions list, click the People and groups link.
4. Click the New drop-down menu and select Add Users.
Enter the following information:
Users/Groups: Click the Browse icon (book) to search for users. You can search for "all" to select all users in an account or in a domain. Select an entry and click the Add button. Once all users have been added. Click the OK button.
Note: If you enter names manually, click the Check Names (person with check mark) icon to confirm the entry is valid.
Add users to a SharePoint group: Click the option button and select a group from the drop-down menu to add these users to a existing group. The users will inherit the existing group's permission level.
Give users permission directly: Click the option button to assign direct permissions. Select the check box beside the desired permission level.
Send welcome e-mail to the new users: Select the check box to send a notification email to the new user(s) with a link to the site. Add a personal message as desired.
5. Click the OK button.