Bulk update objects in FIM/MIM based on CSV file

BulkUpdateFromCsv.ps1

<#
    .SYNOPSIS
        Example script to bulk update users from CSV file.
        The CSV file needs to have columnnames in row 1.
        Columnnames need to correspond to the attribute name in FIM/MIM.
        The column specified as "anchor" will not be updated all other columns will be updated based on content in csv file.
        Multivalue and Reference data types are not supported in this version.
        The script requires that the Lithnet Power Shell module is installed on the computer running the script.
        The account running the script requires write permission to all attributes in the csv file except for the anchor attribute.
#>

PARAM(
    [string]$CSVFile = 'C:\Temp\CSVUsers.txt',
    [string]$Delimiter = ',',
    [string]$Anchor = 'AccountName',
    [string]$ResourceType = 'Person',
    [string]$FIMServiceURI = 'http://localhost:5725'
    )

#region Lithnet
if(!(Get-Module -Name LithnetRMA))
{
Import-Module LithnetRMA;
}

Set-ResourceManagementClient -BaseAddress $FIMServiceURI;
#endregion Lithnet

$Objects = Import-Csv -Delimiter $Delimiter -Path $CSVFile
$Attributes = (Get-Content $CSVFile)[0] -split $Delimiter | ?{$_ -ne $Anchor}  

ForEach($Object in $Objects)
    {
        $resource = Get-Resource -ObjectType $ResourceType -AttributeName $Anchor -AttributeValue ($Object.psobject.Properties | ?{$_.Name -eq $Anchor}).Value -AttributesToGet $Attributes
        ForEach ($Attribute in $Attributes)
            {
                ($resource.psobject.Properties | ?{$_.Name -eq $Attribute}).Value = ($Object.psobject.Properties | ?{$_.Name -eq $Attribute}).Value
            }
        $resource | Save-Resource
    }

BulkUpdateSampleCsv.txt

AccountName,DisplayName,OfficePhone
jdoe,John Doe,1-234-567

Thanks Kent, I made the necessary changes in the script, I will post the script here for reference.

PARAM(
[string]$CSVFile = 'C:\Temp\CSVUsers.txt',
[string]$Delimiter = ',',
[string]$Anchor = 'AccountName',
[string]$ResourceType = 'Person',
[string]$FIMServiceURI = 'http://localhost:5725'
)

#region Lithnet
if(!(Get-Module -Name LithnetRMA))
{
Import-Module LithnetRMA;
}

Set-ResourceManagementClient -BaseAddress $FIMServiceURI;
#endregion Lithnet

$Objects = Import-Csv -Delimiter $Delimiter -Path $CSVFile
$Attributes = (Get-Content $CSVFile)[0] -split $Delimiter | ?{$_ -ne $Anchor}

ForEach($Object in $Objects)
{
$resource = Get-Resource -ObjectType $ResourceType -AttributeName $Anchor -AttributeValue ($Object.psobject.Properties | ?{$.Name -eq $Anchor}).Value -AttributesToGet $Attributes
ForEach ($Attribute in $Attributes)
{
if ($resource.MVattribute -eq $null)
{
($resource.psobject.Properties | ?{$.Name -eq $Attribute}).Value = ($Object.psobject.Properties | ?{$.Name -eq $Attribute}).Value
}
else
{
$resource.MVattribute.Add(($Object.psobject.Properties | ?{$.Name -eq $Attribute}).Value)
}
}
$resource | Save-Resource
}

@shubhigaur Do you have a small sample csv file that works with your version of the script? Just for reference if people find this Gist.

ADDN:OUMapping
OU=00001,OU=Branches,DC=LO,DC=AD,DC=UAT:Oxford Branch
OU=00002,OU=Branches,DC=LO,DC=AD,DC=UAT:ABCD Branch
OU=00003,OU=Branches,DC=LO,DC=AD,DC=UAT:MI Branch
OU=00003,OU=Branches,DC=LO,DC=AD,DC=UAT:COD Branch
OU=00004,OU=Branches,DC=LO,DC=AD,DC=UAT:NO Branch
OU=00004,OU=Branches,DC=LO,DC=AD,DC=UAT:CSO Branch

I am mapping ADDN with a branch name here. 00003 and 0004 has multiple values and OUMapping is a MV attribute here