diff --git a/Tests/Private/New-Map.Tests.ps1 b/Tests/Private/New-Map.Tests.ps1
new file mode 100644
index 0000000..6134a02
--- /dev/null
+++ b/Tests/Private/New-Map.Tests.ps1
@@ -0,0 +1,70 @@
+#Requires -Modules Pester
+$global:here = (Split-Path -Parent $MyInvocation.MyCommand.Path)
+$global:function = ((Split-Path -leaf $MyInvocation.MyCommand.Path).Split('.'))[0]
+
+Describe $global:function -Tag 'Unit', 'Source', 'Built' {
+
+    InModuleScope -ModuleName ZertoApiWrapper {
+        Context "$global:function::Parameter Unit Tests" {
+            it "have a mandatory parameter for the Input Object" {
+                Get-Command $global:function | Should -HaveParameter InputObject -Mandatory -Type PSCustomObject
+            }
+
+            it "Input Object should not accecpt a Null or Empty value" {
+                $myObj = [PSCustomObject]@{ }
+                { New-Map -InputObject $myObj -Key "Key" -Value "Value" } | Should Throw
+                { New-Map -InputObject $null -Key "Key" -Value "Value" } | Should Throw
+                { New-Map -InputObject "" -Key "Key" -Value "Value" } | Should Throw
+            }
+
+            it "have a mandatory string parameter for the Map Key" {
+                Get-Command $global:function | Should -HaveParameter Key -Mandatory -Type String
+            }
+
+            it "The Map variable should not accecpt a Null or Empty value" {
+                $myObj = [PSCustomObject]@{one = 1; two = 2 }
+                { New-Map -InputObject $myObj -Key "" -Value "Value" } | Should Throw
+                { New-Map -InputObject $null -Key $null -Value "Value" } | Should Throw
+                { New-Map -InputObject $myObj -Key 1 -Value "Value" } | Should Throw
+            }
+
+            it "The Value variable should not accecpt a Null or Empty value" {
+                $myObj = [PSCustomObject]@{one = 1; two = 2 }
+                { New-Map -InputObject $myObj -Key "Key" -Value "" } | Should Throw
+                { New-Map -InputObject $myObj -Key "Key" -Value $null } | Should Throw
+                { New-Map -InputObject $myObj -Key "Key" -Value 1 } | Should Throw
+            }
+
+            it "have a mandatory string parameter for the Map Value" {
+                Get-Command $global:function | Should -HaveParameter Value -Mandatory -Type String
+            }
+
+            it "should have an Output type of Hashtable" {
+                (Get-Command $global:function).OutputType.Name | Should -Match "Hashtable"
+            }
+        }
+
+        Context "$global:function::Function Tests" {
+            $myObj = Get-Content "$global:here/Mocks/ProtectedVMs.json" | ConvertFrom-Json
+            BeforeEach {
+                $MyMap = New-Map -InputObject $MyObj -Key "vmIdentifier" -Value "vmName"
+            }
+            it "Returned object should be a hashtable" {
+                $myMap | Should -BeOfType Hashtable
+            }
+
+            it "should return a hashtable with 3 entries" {
+                $myMap.count | should -Be 3
+            }
+
+            it "should be properly mapped" {
+                $myMap["vmid.12"] | Should -Be "ExchangeMailbox"
+                $myMap["vmid.13"] | Should -Be "ExchangeApplication"
+                $myMap["vmid.14"] | Should -Be "ExchangeWeb"
+            }
+        }
+    }
+}
+
+Remove-Variable -Name function -Scope Global
+Remove-Variable -Name here -Scope Global
diff --git a/ZertoApiWrapper/Private/New-Map.ps1 b/ZertoApiWrapper/Private/New-Map.ps1
new file mode 100644
index 0000000..085078d
--- /dev/null
+++ b/ZertoApiWrapper/Private/New-Map.ps1
@@ -0,0 +1,21 @@
+function New-Map {
+    [CmdletBinding()]
+    [OutputType([Hashtable])]
+    param(
+        [Parameter(Mandatory)]
+        [ValidateNotNullOrEmpty()]
+        $inputObject,
+        [Parameter(Mandatory)]
+        [ValidateNotNullOrEmpty()]
+        [string]$key,
+        [Parameter(Mandatory)]
+        [ValidateNotNullOrEmpty()]
+        [string]$value
+    )
+
+    $returnMap = @{ }
+    foreach ($item in $inputObject) {
+        $returnMap[$item.$key] = $item.$value
+    }
+    $returnMap
+}