1. From Setup, enter Users in the Quick Find box, then select Users.
2. Click Assign Licenses from the Managed Packages list.
3. Select the package you want to assign to the user. All available managed packages are listed in the Unassigned Packages list. After selecting a package, Salesforce automatically moves it to the Selected Packages list.The Unassigned Packages list displays all packages that this user could accessif assigned a license. Packages don’t appear on this list if they are unmanaged, uninstalled,in use, or not available.Click a letter to view the packages that begin with that letter or click All to display all available managed packages.Click select shown to select all packages displayed in the Unassigned Packages list on the current page, adding them to the Selected Packages list below.Click deselect shown or deselect all to move packages from the Selected Packages area to the Unassigned Packages area.
4. Click a letter to view the packages that begin with that letter or click All to display all available managed packages.
5. Click select shown to select all packages displayed in the Unassigned Packages list on the current page, adding them to the Selected Packages list below.
6. Click deselect shown or deselect all to move packages from the Selected Packages area to the Unassigned Packages area.
7. Click Add.