diff --git a/CHANGELOG.md b/CHANGELOG.md
index bad923b84..5a14a91b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - SPFarm
   - Updated to run cmdlet `Update-SPFlightsConfigFile` on SharePoint Subscription.
 
+### Fixed
+
+- SPCertificateSettings
+  - Fixed an error where the command failed to add
+    SPCertificateNotificationContacts when there are currently none set.
+
 ## [5.4.0] - 2023-04-04
 
 ### Fixed
diff --git a/SharePointDsc/DSCResources/MSFT_SPCertificateSettings/MSFT_SPCertificateSettings.psm1 b/SharePointDsc/DSCResources/MSFT_SPCertificateSettings/MSFT_SPCertificateSettings.psm1
index 5748ab2ea..f24766620 100644
--- a/SharePointDsc/DSCResources/MSFT_SPCertificateSettings/MSFT_SPCertificateSettings.psm1
+++ b/SharePointDsc/DSCResources/MSFT_SPCertificateSettings/MSFT_SPCertificateSettings.psm1
@@ -285,22 +285,35 @@ function Set-TargetResource
         if ($contactsProvided)
         {
             Write-Verbose "Checking Certificate Notification Contacts"
-            $currentContacts = [array](Get-SPCertificateNotificationContact).Address
+            [array]$currentContacts = Get-SPCertificateNotificationContact
 
-            $diffs = Compare-Object -ReferenceObject $desiredContacts -DifferenceObject $currentContacts
-            foreach ($diff in $diffs)
+            # If there aren't any current Contacts we'll add them all. Also Compare-Object does not like $null Objects.
+            # This fixes Issue "SPCertificateSettings: Unable to set contacts when previously blank" https://github.com/dsccommunity/SharePointDsc/issues/1430
+            if ($currentContacts.Count -eq 0)
             {
-                switch ($diff.SideIndicator)
+                foreach ($contact in $desiredContacts)
                 {
-                    "<="
-                    {
-                        Write-Verbose "Adding $($diff.InputObject)"
-                        $null = Add-SPCertificateNotificationContact -EmailAddress $diff.InputObject
-                    }
-                    "=>"
+                    Write-Verbose "Adding $($diff.InputObject)"
+                    $null = Add-SPCertificateNotificationContact -EmailAddress $contact
+                }
+            }
+            else
+            {
+                $diffs = Compare-Object -ReferenceObject $desiredContacts -DifferenceObject ($currentContacts | Select-Object -ExpandProperty Address)
+                foreach ($diff in $diffs)
+                {
+                    switch ($diff.SideIndicator)
                     {
-                        Write-Verbose "Removing $($diff.InputObject)"
-                        $null = Remove-SPCertificateNotificationContact -EmailAddress $diff.InputObject -Confirm:$false
+                        "<="
+                        {
+                            Write-Verbose "Adding $($diff.InputObject)"
+                            $null = Add-SPCertificateNotificationContact -EmailAddress $diff.InputObject
+                        }
+                        "=>"
+                        {
+                            Write-Verbose "Removing $($diff.InputObject)"
+                            $null = Remove-SPCertificateNotificationContact -EmailAddress $diff.InputObject -Confirm:$false
+                        }
                     }
                 }
             }
diff --git a/tests/Unit/SharePointDsc/SharePointDsc.SPCertificateSettings.Tests.ps1 b/tests/Unit/SharePointDsc/SharePointDsc.SPCertificateSettings.Tests.ps1
index d633bc560..e1fc07088 100644
--- a/tests/Unit/SharePointDsc/SharePointDsc.SPCertificateSettings.Tests.ps1
+++ b/tests/Unit/SharePointDsc/SharePointDsc.SPCertificateSettings.Tests.ps1
@@ -33,7 +33,7 @@ function Invoke-TestSetup
 
     $script:testEnvironment = Initialize-TestEnvironment `
         -DSCModuleName $script:DSCModuleName `
-        -DSCResourceName $script:DSCResourceFullName `
+        -DscResourceName $script:DSCResourceFullName `
         -ResourceType 'Mof' `
         -TestType 'Unit'
 }
@@ -260,7 +260,7 @@ try
                                         CertificateExpirationWarningThresholdDays   = 15
                                         CertificateExpirationErrorThresholdDays     = 15
                                         CertificateNotificationContacts             = @(
-                                            @{
+                                            [PSCustomObject]@{
                                                 Address = 'wrong@contoso.com'
                                             }
                                         )
@@ -270,7 +270,7 @@ try
                                 Mock -CommandName Get-SPFarm -MockWith { return @{ } }
                                 Mock -CommandName Get-SPCertificateNotificationContact -MockWith {
                                     return @(
-                                        @{
+                                        [PSCustomObject]@{
                                             Address = 'wrong@contoso.com'
                                         }
                                     )
@@ -295,6 +295,55 @@ try
                             }
                         }
 
+                        Context -Name "The server is in a farm and zero contacts have been applied" -Fixture {
+                            BeforeAll {
+                                $testParams = @{
+                                    IsSingleInstance                = 'Yes'
+                                    CertificateNotificationContacts = 'admin@contoso.com'
+                                }
+
+                                Mock -CommandName Get-SPCertificateSettings -MockWith {
+                                    $returnVal = @{
+                                        DefaultOrganizationalUnit                   = ''
+                                        DefaultOrganization                         = ''
+                                        DefaultLocality                             = ''
+                                        DefaultState                                = ''
+                                        DefaultCountry                              = ''
+                                        DefaultKeyAlgorithm                         = 'RSA'
+                                        DefaultRsaKeySize                           = 2048
+                                        DefaultEllipticCurve                        = 'nistP256'
+                                        DefaultHashAlgorithm                        = 'SHA256'
+                                        DefaultRsaSignaturePadding                  = 'Pkcs1'
+                                        CertificateExpirationAttentionThresholdDays = 60
+                                        CertificateExpirationWarningThresholdDays   = 15
+                                        CertificateExpirationErrorThresholdDays     = 15
+                                        CertificateNotificationContacts             = [System.Net.Mail.MailAddressCollection]::new()
+                                    }
+                                    return $returnVal
+                                }
+                                Mock -CommandName Get-SPFarm -MockWith { return @{ } }
+                                Mock -CommandName Get-SPCertificateNotificationContact -MockWith {
+                                    return [System.Net.Mail.MailAddressCollection]::new()
+                                }
+                                Mock -CommandName Add-SPCertificateNotificationContact -MockWith {}
+                                Mock -CommandName Remove-SPCertificateNotificationContact -MockWith {}
+                            }
+
+                            It "Should return values from the get method" {
+                                $result = Get-TargetResource @testParams
+                                $result.CertificateNotificationContacts.Count | Should -Be 0
+                            }
+
+                            It "Should return false from the test method" {
+                                Test-TargetResource @testParams | Should -Be $false
+                            }
+
+                            It "Should update the certificate settings" {
+                                Set-TargetResource @testParams
+                                Assert-MockCalled Add-SPCertificateNotificationContact
+                            }
+                        }
+
                         Context -Name "The server is in a farm and the correct settings have been applied" -Fixture {
                             BeforeAll {
                                 $testParams = @{