diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6f651f0..d744a790 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- Added Comment Based Help for `New-NotImplementedException` common
+  function - fixes [Issue #411](https://github.com/PowerShell/NetworkingDsc/issues/411).
+
 ## 7.3.0.0
 
 - DnsClientGlobalSettings:
diff --git a/Modules/NetworkingDsc.Common/NetworkingDsc.Common.psm1 b/Modules/NetworkingDsc.Common/NetworkingDsc.Common.psm1
index d3990d4c..e5ce7b3b 100644
--- a/Modules/NetworkingDsc.Common/NetworkingDsc.Common.psm1
+++ b/Modules/NetworkingDsc.Common/NetworkingDsc.Common.psm1
@@ -305,6 +305,16 @@ function New-InvalidResultException
     throw $errorRecordToThrow
 }
 
+<#
+    .SYNOPSIS
+        Creates and throws a not implemented exception.
+
+    .PARAMETER Message
+        The message explaining why this error is being thrown.
+
+    .PARAMETER ErrorRecord
+        The error record containing the exception that is causing this terminating error.
+#>
 function New-NotImplementedException
 {
     [CmdletBinding()]