[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server")

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server.UserProfiles")

#Function to get service context

function Get-SPServiceContext([Microsoft.SharePoint.Administration.SPServiceApplication]

 $profileApp)

{

 $profileApp = @(Get-SPServiceApplication | ? 

 {$_.TypeName -eq "User Profile Service Application"})[0]

return [Microsoft.SharePoint.SPServiceContext]::GetContext

($profileApp.ServiceApplicationProxyGroup,

[Microsoft.SharePoint.SPSiteSubscriptionIdentifier]::Default)

}

#Get UserProfileManager 

$serviceContext = Get-SPServiceContext

$userProfileConfigManager = New-Object Microsoft.Office.Server.UserProfiles.

 UserProfileConfigManager($serviceContext)

$userProfilePropertyManager = $userProfileConfigManager.ProfilePropertyManager

$userProfilePropertyManager = $userProfilePropertyManager.GetCoreProperties()

$userProfileTypeProperties = $userProfilePropertyManager.GetProfileTypeProperties

([Microsoft.Office.Server.UserProfiles.ProfileType]::User)

$userProfileSubTypeManager = [Microsoft.Office.Server.UserProfiles.

 ProfileSubTypeManager]::Get($serviceContext)

$userProfile = $userProfileSubTypeManager.GetProfileSubtype

([Microsoft.Office.Server.UserProfiles.ProfileSubtypeManager]::GetDefaultProfileName

([Microsoft.Office.Server.UserProfiles.ProfileType]::User))

$userProfileProperties = $userProfile.Properties 

#Set Custom Property values

$PropertyName = "MyProperty"

$PropertyDisplayName = "MyCustomProperty" 

$Privacy="private"

$PrivacyPolicy="mandatory"

$coreProperty = $userProfilePropertyManager.Create($false)

$coreProperty.Name = $PropertyName

$coreProperty.DisplayName = $PropertyDisplayName

$coreProperty.Type = "string"

$coreProperty.Length = "50"

#Add Custom Property

$userProfilePropertyManager.Add($coreProperty)

$profileTypeProperty = $userProfileTypeProperties.Create($coreProperty)

#Display Settings

#Show on the Edit Details page

$profileTypeProperty.IsVisibleOnEditor = $true

#Show in the profile properties section of the user's profile page

$profileTypeProperty.IsVisibleOnViewer = $true

#Show updates to the property in newsfeed

$profileTypeProperty.IsEventLog = $true

$userProfileTypeProperties.Add($profileTypeProperty)

$profileSubTypeProperty = $userProfileProperties.Create($profileTypeProperty)

$profileSubTypeProperty.DefaultPrivacy =[Microsoft.Office.Server.UserProfiles.Privacy]

 ::$Privacy

$profileSubTypeProperty.PrivacyPolicy =

[Microsoft.Office.Server.UserProfiles.PrivacyPolicy]::$PrivacyPolicy

$userProfileProperties.Add($profileSubTypeProperty)

#Add New Mapping for synchronization user profile data

#SharePoint Synchronization connection

$connectionName ="connectionname"

#Attribute name in FIM/LDAP source

$attributeName ="attributename"

$synchConnection = $userProfileConfigManager.ConnectionManager[$connectionName]

$synchConnection.PropertyMapping.AddNewMapping

([Microsoft.Office.Server.UserProfiles.ProfileType]::User,$PropertyName,$attributeName)

Privacy is an Enum, which has these values,

Privacy Member Name	Description
Public	Everyone
Contacts	Colleagues
Organization	Workgroup
Manager	Manager and me
Private	Me
NotSet	Not set