diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa5aaeb044..516d02027e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -116,6 +116,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
     that they always are higher than what we expect.
 - `SqlRS`
   - Re-enable integration tests.
+- `SqlAG`
+  - Fix SeedingMode existence condition.
+- `SqlAGReplica`
+  - Fix SeedingMode existence condition.
 
 ## [17.0.0] - 2024-09-30
 
diff --git a/source/DSCResources/DSC_SqlAG/DSC_SqlAG.psm1 b/source/DSCResources/DSC_SqlAG/DSC_SqlAG.psm1
index 1faff8faee..b0296beda9 100644
--- a/source/DSCResources/DSC_SqlAG/DSC_SqlAG.psm1
+++ b/source/DSCResources/DSC_SqlAG/DSC_SqlAG.psm1
@@ -759,7 +759,7 @@ function Test-TargetResource
                 $parametersToCheck += 'BasicAvailabilityGroup'
                 $parametersToCheck += 'DatabaseHealthTrigger'
                 $parametersToCheck += 'DtcSupportEnabled'
-                if ( $getTargetResourceResult.SeedingMode )
+                if ( $null -ne $getTargetResourceResult.SeedingMode )
                 {
                     $parametersToCheck += 'SeedingMode'
                 }
diff --git a/source/DSCResources/DSC_SqlAGReplica/DSC_SqlAGReplica.psm1 b/source/DSCResources/DSC_SqlAGReplica/DSC_SqlAGReplica.psm1
index 908e31ca61..b8faea5548 100644
--- a/source/DSCResources/DSC_SqlAGReplica/DSC_SqlAGReplica.psm1
+++ b/source/DSCResources/DSC_SqlAGReplica/DSC_SqlAGReplica.psm1
@@ -739,7 +739,7 @@ function Test-TargetResource
                 'ReadOnlyRoutingConnectionUrl',
                 'ReadOnlyRoutingList'
             )
-            if ( $getTargetResourceResult.SeedingMode)
+            if ( $null -ne $getTargetResourceResult.SeedingMode )
             {
                 $parametersToCheck += 'SeedingMode'
             }
diff --git a/tests/Unit/DSC_SqlAG.Tests.ps1 b/tests/Unit/DSC_SqlAG.Tests.ps1
index 30f0b45102..86783989ef 100644
--- a/tests/Unit/DSC_SqlAG.Tests.ps1
+++ b/tests/Unit/DSC_SqlAG.Tests.ps1
@@ -99,7 +99,7 @@ Describe 'SqlAG\Get-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -111,7 +111,7 @@ Describe 'SqlAG\Get-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -123,7 +123,7 @@ Describe 'SqlAG\Get-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -188,7 +188,7 @@ Describe 'SqlAG\Get-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -200,7 +200,7 @@ Describe 'SqlAG\Get-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -369,7 +369,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -381,7 +381,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -393,7 +393,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -446,7 +446,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -458,7 +458,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -470,7 +470,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -693,7 +693,7 @@ Describe 'SqlAG\Set-TargetResource' {
             $mockReplicaObject.EndpointUrl = 'TCP://Server1:5022'
             $mockReplicaObject.FailoverMode = 'Manual'
             $mockReplicaObject.Name = 'Server1'
-            $mockReplicaObject.SeedingMode = 'Manual'
+            $mockReplicaObject.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             Mock -CommandName New-SqlAvailabilityReplica -MockWith {
                 return $mockReplicaObject
@@ -1215,7 +1215,7 @@ Describe 'SqlAG\Test-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -1227,7 +1227,7 @@ Describe 'SqlAG\Test-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -1239,7 +1239,7 @@ Describe 'SqlAG\Test-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -1303,7 +1303,7 @@ Describe 'SqlAG\Test-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -1315,7 +1315,7 @@ Describe 'SqlAG\Test-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
diff --git a/tests/Unit/DSC_SqlAGReplica.Tests.ps1 b/tests/Unit/DSC_SqlAGReplica.Tests.ps1
index dc07887909..1db4742d7b 100644
--- a/tests/Unit/DSC_SqlAGReplica.Tests.ps1
+++ b/tests/Unit/DSC_SqlAGReplica.Tests.ps1
@@ -99,7 +99,7 @@ Describe 'SqlAGReplica\Get-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -111,7 +111,7 @@ Describe 'SqlAGReplica\Get-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -123,7 +123,7 @@ Describe 'SqlAGReplica\Get-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -214,7 +214,7 @@ Describe 'SqlAGReplica\Get-TargetResource' {
                 $getTargetResourceResult.ServerName | Should -Be 'Server1'
                 $getTargetResourceResult.InstanceName | Should -Be 'MSSQLSERVER'
                 $getTargetResourceResult.EndpointHostName | Should -Be 'Server1'
-                $getTargetResourceResult.SeedingMode | Should -Be 'Manual'
+                $getTargetResourceResult.SeedingMode | Should -Be ([Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual)
             }
 
             Should -Invoke -CommandName Connect-SQL -Exactly -Times 1 -Scope It
@@ -246,7 +246,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -258,7 +258,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -270,7 +270,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             # Mock the availability groups
             $mockAvailabilityGroup1 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityGroup
@@ -317,7 +317,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -329,7 +329,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -341,7 +341,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
             #endregion Mock the availability group replicas
 
             # Mock the availability groups
@@ -405,7 +405,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica1.Name = 'Server1'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingConnectionUrl = 'TCP://Server1.domain.com:1433'
             $mockAvailabilityGroupReplica1.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica1.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica1.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica2 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica2.AvailabilityMode = 'AsynchronousCommit'
@@ -417,7 +417,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica2.Name = 'Server2'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingConnectionUrl = 'TCP://Server2.domain.com:1433'
             $mockAvailabilityGroupReplica2.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica2.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica2.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
 
             $mockAvailabilityGroupReplica3 = New-Object -TypeName Microsoft.SqlServer.Management.Smo.AvailabilityReplica
             $mockAvailabilityGroupReplica3.AvailabilityMode = 'AsynchronousCommit'
@@ -429,7 +429,7 @@ Describe 'SqlAGReplica\Set-TargetResource' {
             $mockAvailabilityGroupReplica3.Name = 'Server3'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingConnectionUrl = 'TCP://Server3.domain.com:1433'
             $mockAvailabilityGroupReplica3.ReadOnlyRoutingList = @('Server1', 'Server2')
-            $mockAvailabilityGroupReplica3.SeedingMode = 'Manual'
+            $mockAvailabilityGroupReplica3.SeedingMode = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Manual
             #endregion Mock the availability group replicas
 
             # Mock the availability groups
@@ -1645,7 +1645,7 @@ Describe 'SqlAGReplica\Test-TargetResource' {
             }
             @{
                 MockPropertyName  = 'SeedingMode'
-                MockPropertyValue = 'Automatic'
+                MockPropertyValue = 'Manual'
             }
         ) {
             BeforeAll {
@@ -1666,7 +1666,7 @@ Describe 'SqlAGReplica\Test-TargetResource' {
                         FailoverMode                  = 'Manual'
                         ReadOnlyRoutingConnectionUrl  = 'TCP://Server1.domain.com:1433'
                         ReadOnlyRoutingList           = @('Server1', 'Server2')
-                        SeedingMode                   = 'Manual'
+                        SeedingMode                   = [Microsoft.SqlServer.Management.Smo.AvailabilityReplicaSeedingMode]::Automatic
 
                         # Read properties
                         EndpointPort                  = '5022'