diff --git a/src/Umbraco.Core/Persistence/Repositories/IPropertyTypeUsageRepository.cs b/src/Umbraco.Core/Persistence/Repositories/IPropertyTypeUsageRepository.cs
index 7aa05fc1ff..d0e3eb356c 100644
--- a/src/Umbraco.Core/Persistence/Repositories/IPropertyTypeUsageRepository.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/IPropertyTypeUsageRepository.cs
@@ -1,7 +1,17 @@
 namespace Umbraco.Cms.Core.Persistence.Repositories;
 
+/// <summary>
+/// Defines repository methods for querying property type usage.
+/// </summary>
 public interface IPropertyTypeUsageRepository
 {
+    /// <summary>
+    /// Determines whether there are any saved property values for the specified content type and property alias.
+    /// </summary>
     Task<bool> HasSavedPropertyValuesAsync(Guid contentTypeKey, string propertyAlias);
+
+    /// <summary>
+    /// Determines whether a content type with the specified unique identifier exists.
+    /// </summary>
     Task<bool> ContentTypeExistAsync(Guid contentTypeKey);
 }
diff --git a/src/Umbraco.Core/Services/IPropertyTypeUsageService.cs b/src/Umbraco.Core/Services/IPropertyTypeUsageService.cs
index df061ca628..5497e575c5 100644
--- a/src/Umbraco.Core/Services/IPropertyTypeUsageService.cs
+++ b/src/Umbraco.Core/Services/IPropertyTypeUsageService.cs
@@ -2,6 +2,9 @@ using Umbraco.Cms.Core.Services.OperationStatus;
 
 namespace Umbraco.Cms.Core.Services;
 
+/// <summary>
+/// Defines service methods for querying property type usage.
+/// </summary>
 public interface IPropertyTypeUsageService
 {
     /// <summary>
diff --git a/src/Umbraco.Core/Services/PropertyTypeUsageService.cs b/src/Umbraco.Core/Services/PropertyTypeUsageService.cs
index d22bdeb440..579a338ecd 100644
--- a/src/Umbraco.Core/Services/PropertyTypeUsageService.cs
+++ b/src/Umbraco.Core/Services/PropertyTypeUsageService.cs
@@ -4,19 +4,25 @@ using Umbraco.Cms.Core.Services.OperationStatus;
 
 namespace Umbraco.Cms.Core.Services;
 
+/// <inheritdoc/>
 public class PropertyTypeUsageService : IPropertyTypeUsageService
 {
     private readonly IPropertyTypeUsageRepository _propertyTypeUsageRepository;
-    private readonly IContentTypeService _contentTypeService;
     private readonly ICoreScopeProvider _scopeProvider;
 
+    // TODO (V18): Remove IContentTypeService parameter from constructor.
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PropertyTypeUsageService"/> class.
+    /// </summary>
     public PropertyTypeUsageService(
         IPropertyTypeUsageRepository propertyTypeUsageRepository,
+#pragma warning disable IDE0060 // Remove unused parameter
         IContentTypeService contentTypeService,
+#pragma warning restore IDE0060 // Remove unused parameter
         ICoreScopeProvider scopeProvider)
     {
         _propertyTypeUsageRepository = propertyTypeUsageRepository;
-        _contentTypeService = contentTypeService;
         _scopeProvider = scopeProvider;
     }
 
diff --git a/src/Umbraco.Infrastructure/Persistence/Repositories/Implement/PropertyTypeUsageRepository.cs b/src/Umbraco.Infrastructure/Persistence/Repositories/Implement/PropertyTypeUsageRepository.cs
index ab9a03bcef..64917f9af1 100644
--- a/src/Umbraco.Infrastructure/Persistence/Repositories/Implement/PropertyTypeUsageRepository.cs
+++ b/src/Umbraco.Infrastructure/Persistence/Repositories/Implement/PropertyTypeUsageRepository.cs
@@ -1,4 +1,3 @@
-
 using NPoco;
 using Umbraco.Cms.Core;
 using Umbraco.Cms.Core.Persistence.Repositories;
@@ -8,28 +7,26 @@ using Umbraco.Extensions;
 
 namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement;
 
+/// <inheritdoc/>
 internal sealed class PropertyTypeUsageRepository : IPropertyTypeUsageRepository
 {
-    private static readonly Guid?[] NodeObjectTypes = new Guid?[]
-    {
+    private static readonly List<Guid> _nodeObjectTypes =
+    [
         Constants.ObjectTypes.DocumentType, Constants.ObjectTypes.MediaType, Constants.ObjectTypes.MemberType,
-    };
+    ];
 
     private readonly IScopeAccessor _scopeAccessor;
 
-    public PropertyTypeUsageRepository(IScopeAccessor scopeAccessor)
-    {
-        _scopeAccessor = scopeAccessor;
-    }
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PropertyTypeUsageRepository"/> class.
+    /// </summary>
+    public PropertyTypeUsageRepository(IScopeAccessor scopeAccessor) => _scopeAccessor = scopeAccessor;
 
+    /// <inheritdoc/>
     public Task<bool> HasSavedPropertyValuesAsync(Guid contentTypeKey, string propertyAlias)
     {
-        IUmbracoDatabase? database = _scopeAccessor.AmbientScope?.Database;
-
-        if (database is null)
-        {
-            throw new InvalidOperationException("A scope is required to query the database");
-        }
+        IUmbracoDatabase? database = _scopeAccessor.AmbientScope?.Database
+            ?? throw new InvalidOperationException("A scope is required to query the database");
 
         Sql<ISqlContext> selectQuery = database.SqlContext.Sql()
             .SelectAll()
@@ -47,26 +44,21 @@ internal sealed class PropertyTypeUsageRepository : IPropertyTypeUsageRepository
         return Task.FromResult(database.ExecuteScalar<bool>(hasValuesQuery));
     }
 
+    /// <inheritdoc/>
     public Task<bool> ContentTypeExistAsync(Guid contentTypeKey)
     {
-        IUmbracoDatabase? database = _scopeAccessor.AmbientScope?.Database;
-
-        if (database is null)
-        {
-            throw new InvalidOperationException("A scope is required to query the database");
-        }
+        IUmbracoDatabase? database = _scopeAccessor.AmbientScope?.Database
+            ?? throw new InvalidOperationException("A scope is required to query the database");
 
         Sql<ISqlContext> selectQuery = database.SqlContext.Sql()
             .SelectAll()
             .From<NodeDto>("n")
             .Where<NodeDto>(n => n.UniqueId == contentTypeKey, "n")
-            .Where<NodeDto>(n => NodeObjectTypes.Contains(n.NodeObjectType), "n");
+            .WhereIn<NodeDto>(n => n.NodeObjectType, _nodeObjectTypes, "n");
 
         Sql<ISqlContext> hasValuesQuery = database.SqlContext.Sql()
             .SelectAnyIfExists(selectQuery);
 
         return Task.FromResult(database.ExecuteScalar<bool>(hasValuesQuery));
     }
-
-
 }
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/HealthCheck/ExecuteActionHealthCheckControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/HealthCheck/ExecuteActionHealthCheckControllerTests.cs
index 249710ab1e..e4dd67d64d 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/HealthCheck/ExecuteActionHealthCheckControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/HealthCheck/ExecuteActionHealthCheckControllerTests.cs
@@ -27,7 +27,7 @@ public class ExecuteActionHealthCheckControllerTests : ManagementApiUserGroupTes
 
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
@@ -58,7 +58,7 @@ public class ExecuteActionHealthCheckControllerTests : ManagementApiUserGroupTes
     protected override async Task<HttpResponseMessage> ClientRequest()
     {
         HealthCheckActionRequestModel healthCheckActionRequest =
-            new() { HealthCheck = new ReferenceByIdModel(_dataIntegrityHealthCheckId), ValueRequired = false };
+            new() { HealthCheck = new ReferenceByIdModel(_dataIntegrityHealthCheckId), ValueRequired = false, Alias = "fixContentPaths" };
         return await Client.PostAsync(Url, JsonContent.Create(healthCheckActionRequest));
     }
 }
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllLogViewerControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllLogViewerControllerTests.cs
index a5e4a2b4eb..9e8c1844ae 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllLogViewerControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllLogViewerControllerTests.cs
@@ -12,7 +12,7 @@ public class AllLogViewerControllerTests : ManagementApiUserGroupTestBase<AllLog
     // We get the InternalServerError for the admin because it has access, but there is no log file to view
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllMessageTemplateLogViewerControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllMessageTemplateLogViewerControllerTests.cs
index 71c5d12ebf..71df002794 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllMessageTemplateLogViewerControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/AllMessageTemplateLogViewerControllerTests.cs
@@ -11,7 +11,7 @@ public class AllMessageTemplateLogViewerControllerTests : ManagementApiUserGroup
     // We get the InternalServerError for the admin because it has access, but there is no log file to view
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/LogLevelCountLogViewerControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/LogLevelCountLogViewerControllerTests.cs
index 96efcdb4ee..4fd8127281 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/LogLevelCountLogViewerControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/LogLevelCountLogViewerControllerTests.cs
@@ -11,7 +11,7 @@ public class LogLevelCountLogViewerControllerTests : ManagementApiUserGroupTestB
     // We get the InternalServerError for the admin because it has access, but there is no log file to view
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/ValidateLogFileSizeLogViewerControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/ValidateLogFileSizeLogViewerControllerTests.cs
index fcd26afd5a..56622b6db6 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/ValidateLogFileSizeLogViewerControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/LogViewer/ValidateLogFileSizeLogViewerControllerTests.cs
@@ -11,7 +11,7 @@ public class ValidateLogFileSizeLogViewerControllerTests: ManagementApiUserGroup
     // We get the InternalServerError for the admin because it has access, but there is no log file to view
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/PropertyType/IsUsedPropertyTypeControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/PropertyType/IsUsedPropertyTypeControllerTests.cs
index f9a7016019..c689ad242e 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/PropertyType/IsUsedPropertyTypeControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/PropertyType/IsUsedPropertyTypeControllerTests.cs
@@ -36,7 +36,7 @@ public class IsUsedPropertyTypeControllerTests : ManagementApiUserGroupTestBase<
 
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError
+        ExpectedStatusCode = HttpStatusCode.OK
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/ManagementApi/User/InviteUserControllerTests.cs b/tests/Umbraco.Tests.Integration/ManagementApi/User/InviteUserControllerTests.cs
index de91676ec3..827e958349 100644
--- a/tests/Umbraco.Tests.Integration/ManagementApi/User/InviteUserControllerTests.cs
+++ b/tests/Umbraco.Tests.Integration/ManagementApi/User/InviteUserControllerTests.cs
@@ -27,7 +27,7 @@ public class InviteUserControllerTests : ManagementApiUserGroupTestBase<InviteUs
 
     protected override UserGroupAssertionModel AdminUserGroupAssertionModel => new()
     {
-        ExpectedStatusCode = HttpStatusCode.InternalServerError,
+        ExpectedStatusCode = HttpStatusCode.InternalServerError, // We expect an error here because email sending is not configured in these tests.
     };
 
     protected override UserGroupAssertionModel EditorUserGroupAssertionModel => new()
diff --git a/tests/Umbraco.Tests.Integration/Testing/UmbracoIntegrationTestWithContent.cs b/tests/Umbraco.Tests.Integration/Testing/UmbracoIntegrationTestWithContent.cs
index 42aba90eb2..e8101d9414 100644
--- a/tests/Umbraco.Tests.Integration/Testing/UmbracoIntegrationTestWithContent.cs
+++ b/tests/Umbraco.Tests.Integration/Testing/UmbracoIntegrationTestWithContent.cs
@@ -1,7 +1,6 @@
 // Copyright (c) Umbraco.
 // See LICENSE for more details.
 
-using System;
 using NUnit.Framework;
 using Umbraco.Cms.Core.Models;
 using Umbraco.Cms.Core.Services;
@@ -11,6 +10,8 @@ namespace Umbraco.Cms.Tests.Integration.Testing;
 
 public abstract class UmbracoIntegrationTestWithContent : UmbracoIntegrationTest
 {
+    protected const string TextpageContentTypeKey = "1D3A8E6E-2EA9-4CC1-B229-1AEE19821522";
+
     protected const string TextpageKey = "B58B3AD4-62C2-4E27-B1BE-837BD7C533E0";
     protected const string SubPageKey = "07EABF4A-5C62-4662-9F2A-15BBB488BCA5";
     protected const string SubPage2Key = "0EED78FC-A6A8-4587-AB18-D3AFE212B1C4";
@@ -48,7 +49,7 @@ public abstract class UmbracoIntegrationTestWithContent : UmbracoIntegrationTest
         // Create and Save ContentType "umbTextpage" -> 1051 (template), 1052 (content type)
         ContentType =
             ContentTypeBuilder.CreateSimpleContentType("umbTextpage", "Textpage", defaultTemplateId: template.Id);
-        ContentType.Key = new Guid("1D3A8E6E-2EA9-4CC1-B229-1AEE19821522");
+        ContentType.Key = new Guid(TextpageContentTypeKey);
         ContentTypeService.Save(ContentType);
 
         // Create and Save Content "Homepage" based on "umbTextpage" -> 1053
diff --git a/tests/Umbraco.Tests.Integration/Umbraco.Infrastructure/Services/PropertyTypeUsageServiceTests.cs b/tests/Umbraco.Tests.Integration/Umbraco.Infrastructure/Services/PropertyTypeUsageServiceTests.cs
new file mode 100644
index 0000000000..1905e23912
--- /dev/null
+++ b/tests/Umbraco.Tests.Integration/Umbraco.Infrastructure/Services/PropertyTypeUsageServiceTests.cs
@@ -0,0 +1,26 @@
+using NUnit.Framework;
+using Umbraco.Cms.Core;
+using Umbraco.Cms.Core.Services;
+using Umbraco.Cms.Core.Services.OperationStatus;
+using Umbraco.Cms.Tests.Common.Testing;
+using Umbraco.Cms.Tests.Integration.Testing;
+
+namespace Umbraco.Cms.Tests.Integration.Umbraco.Infrastructure.Services;
+
+[TestFixture]
+[UmbracoTest(Database = UmbracoTestOptions.Database.NewSchemaPerTest)]
+internal sealed class PropertyTypeUsageServiceTests : UmbracoIntegrationTestWithContent
+{
+    private IPropertyTypeUsageService PropertyTypeUsageService => GetRequiredService<IPropertyTypeUsageService>();
+
+    [TestCase(TextpageContentTypeKey, "title", true, true, PropertyTypeOperationStatus.Success)]
+    [TestCase("1D3A8E6E-2EA9-4CC1-B229-1AEE19821523", "title", false, false, PropertyTypeOperationStatus.ContentTypeNotFound)]
+    [TestCase(TextpageContentTypeKey, "missingProperty", true, false, PropertyTypeOperationStatus.Success)]
+    public async Task Can_Check_For_Saved_Property_Values(Guid contentTypeKey, string propertyAlias, bool expectedSuccess, bool expectedResult, PropertyTypeOperationStatus expectedOperationStatus)
+    {
+        Attempt<bool, PropertyTypeOperationStatus> resultAttempt = await PropertyTypeUsageService.HasSavedPropertyValuesAsync(contentTypeKey, propertyAlias);
+        Assert.AreEqual(expectedSuccess, resultAttempt.Success);
+        Assert.AreEqual(expectedResult, resultAttempt.Result);
+        Assert.AreEqual(expectedOperationStatus, resultAttempt.Status);
+    }
+}