diff --git a/src/Umbraco.Cms.Api.Common/Configuration/ConfigureUmbracoSwaggerGenOptions.cs b/src/Umbraco.Cms.Api.Common/Configuration/ConfigureUmbracoSwaggerGenOptions.cs
index 572a74717926..d379b9601962 100644
--- a/src/Umbraco.Cms.Api.Common/Configuration/ConfigureUmbracoSwaggerGenOptions.cs
+++ b/src/Umbraco.Cms.Api.Common/Configuration/ConfigureUmbracoSwaggerGenOptions.cs
@@ -6,6 +6,7 @@
 using Microsoft.OpenApi.Models;
 using Swashbuckle.AspNetCore.SwaggerGen;
 using Umbraco.Cms.Api.Common.OpenApi;
+using Umbraco.Cms.Core.DependencyInjection;
 using Umbraco.Extensions;
 
 namespace Umbraco.Cms.Api.Common.Configuration;
@@ -14,6 +15,7 @@ public class ConfigureUmbracoSwaggerGenOptions : IConfigureOptions<SwaggerGenOpt
 {
     private readonly IOperationIdSelector _operationIdSelector;
     private readonly ISchemaIdSelector _schemaIdSelector;
+    private readonly ISubTypesSelector _subTypesSelector;
 
     [Obsolete("Use non-obsolete constructor. This will be removed in Umbraco 15.")]
     public ConfigureUmbracoSwaggerGenOptions(
@@ -24,12 +26,21 @@ public ConfigureUmbracoSwaggerGenOptions(
     {
     }
 
+    [Obsolete("Use non-obsolete constructor. This will be removed in Umbraco 16.")]
     public ConfigureUmbracoSwaggerGenOptions(
         IOperationIdSelector operationIdSelector,
         ISchemaIdSelector schemaIdSelector)
+        : this(operationIdSelector, schemaIdSelector, StaticServiceProvider.Instance.GetRequiredService<ISubTypesSelector>())
+    { }
+
+    public ConfigureUmbracoSwaggerGenOptions(
+        IOperationIdSelector operationIdSelector,
+        ISchemaIdSelector schemaIdSelector,
+        ISubTypesSelector subTypesSelector)
     {
         _operationIdSelector = operationIdSelector;
         _schemaIdSelector = schemaIdSelector;
+        _subTypesSelector = subTypesSelector;
     }
 
     public void Configure(SwaggerGenOptions swaggerGenOptions)
@@ -62,6 +73,7 @@ public void Configure(SwaggerGenOptions swaggerGenOptions)
         swaggerGenOptions.OrderActionsBy(ActionOrderBy);
         swaggerGenOptions.SchemaFilter<EnumSchemaFilter>();
         swaggerGenOptions.CustomSchemaIds(_schemaIdSelector.SchemaId);
+        swaggerGenOptions.SelectSubTypesUsing(_subTypesSelector.SubTypes);
         swaggerGenOptions.SupportNonNullableReferenceTypes();
     }
 
diff --git a/src/Umbraco.Cms.Api.Common/DependencyInjection/UmbracoBuilderApiExtensions.cs b/src/Umbraco.Cms.Api.Common/DependencyInjection/UmbracoBuilderApiExtensions.cs
index 49fe1f233e19..fcd7d9c6ec6d 100644
--- a/src/Umbraco.Cms.Api.Common/DependencyInjection/UmbracoBuilderApiExtensions.cs
+++ b/src/Umbraco.Cms.Api.Common/DependencyInjection/UmbracoBuilderApiExtensions.cs
@@ -23,6 +23,8 @@ public static IUmbracoBuilder AddUmbracoApiOpenApiUI(this IUmbracoBuilder builde
         builder.Services.AddSingleton<IOperationIdHandler, OperationIdHandler>();
         builder.Services.AddSingleton<ISchemaIdSelector, SchemaIdSelector>();
         builder.Services.AddSingleton<ISchemaIdHandler, SchemaIdHandler>();
+        builder.Services.AddSingleton<ISubTypesSelector, SubTypesSelector>();
+        builder.Services.AddSingleton<ISubTypesHandler, SubTypesHandler>();
         builder.Services.Configure<UmbracoPipelineOptions>(options => options.AddFilter(new SwaggerRouteTemplatePipelineFilter("UmbracoApiCommon")));
 
         return builder;
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/IOperationIdHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/IOperationIdHandler.cs
index e966c3b2e2c8..8855c81c0cbe 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/IOperationIdHandler.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/IOperationIdHandler.cs
@@ -4,7 +4,12 @@ namespace Umbraco.Cms.Api.Common.OpenApi;
 
 public interface IOperationIdHandler
 {
+     [Obsolete("Use CanHandle(ApiDescription apiDescription, string documentName) instead. Will be removed in v16.")]
      bool CanHandle(ApiDescription apiDescription);
 
+#pragma warning disable CS0618 // Type or member is obsolete
+     bool CanHandle(ApiDescription apiDescription, string documentName) => CanHandle(apiDescription);
+#pragma warning restore CS0618 // Type or member is obsolete
+
      string Handle(ApiDescription apiDescription);
 }
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/ISchemaIdHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/ISchemaIdHandler.cs
index 81881f121a35..2df4ef8de4d8 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/ISchemaIdHandler.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/ISchemaIdHandler.cs
@@ -2,7 +2,12 @@ namespace Umbraco.Cms.Api.Common.OpenApi;
 
 public interface ISchemaIdHandler
 {
+    [Obsolete("Use CanHandle(Type type, string documentName) instead. Will be removed in v16.")]
     bool CanHandle(Type type);
 
+#pragma warning disable CS0618 // Type or member is obsolete
+    bool CanHandle(Type type, string documentName) => CanHandle(type);
+#pragma warning restore CS0618 // Type or member is obsolete
+
     string Handle(Type type);
 }
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesHandler.cs
new file mode 100644
index 000000000000..72466789e607
--- /dev/null
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesHandler.cs
@@ -0,0 +1,8 @@
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public interface ISubTypesHandler
+{
+    bool CanHandle(Type type, string documentName);
+
+    IEnumerable<Type> Handle(Type type);
+}
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesSelector.cs b/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesSelector.cs
new file mode 100644
index 000000000000..e358361eb393
--- /dev/null
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/ISubTypesSelector.cs
@@ -0,0 +1,6 @@
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public interface ISubTypesSelector
+{
+    IEnumerable<Type> SubTypes(Type type);
+}
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/OpenApiSelectorBase.cs b/src/Umbraco.Cms.Api.Common/OpenApi/OpenApiSelectorBase.cs
new file mode 100644
index 000000000000..ba023849ecfb
--- /dev/null
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/OpenApiSelectorBase.cs
@@ -0,0 +1,27 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Options;
+using Umbraco.Cms.Core.Configuration.Models;
+using Umbraco.Cms.Core.Hosting;
+using Umbraco.Extensions;
+
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public abstract class OpenApiSelectorBase(
+    IOptions<GlobalSettings> settings,
+    IHostingEnvironment hostingEnvironment,
+    IHttpContextAccessor httpContextAccessor)
+{
+    protected string ResolveOpenApiDocumentName()
+    {
+        var backOfficePath = settings.Value.GetBackOfficePath(hostingEnvironment);
+        if (httpContextAccessor.HttpContext?.Request.Path.StartsWithSegments($"{backOfficePath}/swagger/") ?? false)
+        {
+            // Split the path into segments
+            var segments = httpContextAccessor.HttpContext.Request.Path.Value!.TrimStart($"{backOfficePath}/swagger/").Split('/');
+
+            // Extract the document name from the path
+            return segments[0];
+        }
+        return string.Empty;
+    }
+}
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdHandler.cs
index 8fe6c7dff4fc..0d67c9d912e8 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdHandler.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdHandler.cs
@@ -14,18 +14,24 @@ public class OperationIdHandler : IOperationIdHandler
     public OperationIdHandler(IOptions<ApiVersioningOptions> apiVersioningOptions)
         => _apiVersioningOptions = apiVersioningOptions.Value;
 
+    [Obsolete("Use CanHandle(ApiDescription apiDescription, string documentName) instead. Will be removed in v16.")]
     public bool CanHandle(ApiDescription apiDescription)
+        => CanHandle(apiDescription, string.Empty);
+
+    public bool CanHandle(ApiDescription apiDescription, string documentName)
     {
         if (apiDescription.ActionDescriptor is not ControllerActionDescriptor controllerActionDescriptor)
         {
             return false;
         }
 
-        return CanHandle(apiDescription, controllerActionDescriptor);
+        return CanHandle(apiDescription, controllerActionDescriptor, documentName);
     }
 
     protected virtual bool CanHandle(ApiDescription apiDescription, ControllerActionDescriptor controllerActionDescriptor)
         => controllerActionDescriptor.ControllerTypeInfo.Namespace?.StartsWith("Umbraco.Cms.Api") is true;
+    protected virtual bool CanHandle(ApiDescription apiDescription, ControllerActionDescriptor controllerActionDescriptor, string documentName)
+        => CanHandle(apiDescription, controllerActionDescriptor);
 
     public virtual string Handle(ApiDescription apiDescription)
         => UmbracoOperationId(apiDescription);
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdSelector.cs b/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdSelector.cs
index 3c00a126be9e..55402599d982 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdSelector.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/OperationIdSelector.cs
@@ -1,19 +1,38 @@
 using Asp.Versioning;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc.ApiExplorer;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Umbraco.Cms.Core.Configuration.Models;
+using Umbraco.Cms.Core.DependencyInjection;
+using Umbraco.Cms.Core.Hosting;
 
 namespace Umbraco.Cms.Api.Common.OpenApi;
 
-public class OperationIdSelector : IOperationIdSelector
+public class OperationIdSelector : OpenApiSelectorBase, IOperationIdSelector
 {
     private readonly IEnumerable<IOperationIdHandler> _operationIdHandlers;
 
     [Obsolete("Use non-obsolete constructor. This will be removed in Umbraco 15.")]
     public OperationIdSelector()
         : this(Enumerable.Empty<IOperationIdHandler>())
-    {
-    }
+    { }
 
+    [Obsolete("Use non obsolete constructor instead. Will be removed in v16.")]
     public OperationIdSelector(IEnumerable<IOperationIdHandler> operationIdHandlers)
+        : this(
+            StaticServiceProvider.Instance.GetRequiredService<IOptions<GlobalSettings>>(),
+            StaticServiceProvider.Instance.GetRequiredService<IHostingEnvironment>(),
+            StaticServiceProvider.Instance.GetRequiredService<IHttpContextAccessor>(),
+            operationIdHandlers)
+    { }
+
+    public OperationIdSelector(
+        IOptions<GlobalSettings> settings,
+        IHostingEnvironment hostingEnvironment,
+        IHttpContextAccessor httpContextAccessor,
+        IEnumerable<IOperationIdHandler> operationIdHandlers)
+        : base(settings, hostingEnvironment, httpContextAccessor)
         => _operationIdHandlers = operationIdHandlers;
 
     [Obsolete("Use overload that only takes ApiDescription instead. This will be removed in Umbraco 15.")]
@@ -21,7 +40,12 @@ public OperationIdSelector(IEnumerable<IOperationIdHandler> operationIdHandlers)
 
     public virtual string? OperationId(ApiDescription apiDescription)
     {
-        IOperationIdHandler? handler = _operationIdHandlers.FirstOrDefault(h => h.CanHandle(apiDescription));
-        return handler?.Handle(apiDescription);
+        var documentName = ResolveOpenApiDocumentName();
+        if (!string.IsNullOrEmpty(documentName))
+        {
+            IOperationIdHandler? handler = _operationIdHandlers.FirstOrDefault(h => h.CanHandle(apiDescription, documentName));
+            return handler?.Handle(apiDescription);
+        }
+        return null;
     }
 }
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdHandler.cs
index c08e0be19ac9..2f3e1c50f4e0 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdHandler.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdHandler.cs
@@ -6,9 +6,15 @@ namespace Umbraco.Cms.Api.Common.OpenApi;
 // NOTE: Left unsealed on purpose, so it is extendable.
 public class SchemaIdHandler : ISchemaIdHandler
 {
+    [Obsolete("Use CanHandle(Type type, string documentName) instead. Will be removed in v16.")]
     public virtual bool CanHandle(Type type)
         => type.Namespace?.StartsWith("Umbraco.Cms") is true;
 
+#pragma warning disable CS0618 // Type or member is obsolete
+    public virtual bool CanHandle(Type type, string documentName)
+        => CanHandle(type);
+#pragma warning restore CS0618 // Type or member is obsolete
+
     public virtual string Handle(Type type)
         => UmbracoSchemaId(type);
 
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdSelector.cs b/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdSelector.cs
index 4ff28c795903..5cdbb0f11475 100644
--- a/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdSelector.cs
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/SchemaIdSelector.cs
@@ -1,15 +1,41 @@
-namespace Umbraco.Cms.Api.Common.OpenApi;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Umbraco.Cms.Core.Configuration.Models;
+using Umbraco.Cms.Core.DependencyInjection;
+using Umbraco.Cms.Core.Hosting;
 
-public class SchemaIdSelector : ISchemaIdSelector
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public class SchemaIdSelector : OpenApiSelectorBase, ISchemaIdSelector
 {
     private readonly IEnumerable<ISchemaIdHandler> _schemaIdHandlers;
 
+    [Obsolete("Use non obsolete constructor instead. Will be removed in v16.")]
     public SchemaIdSelector(IEnumerable<ISchemaIdHandler> schemaIdHandlers)
+        : this(
+            StaticServiceProvider.Instance.GetRequiredService<IOptions<GlobalSettings>>(),
+            StaticServiceProvider.Instance.GetRequiredService<IHostingEnvironment>(),
+            StaticServiceProvider.Instance.GetRequiredService<IHttpContextAccessor>(),
+            schemaIdHandlers)
+    { }
+
+    public SchemaIdSelector(
+        IOptions<GlobalSettings> settings,
+        IHostingEnvironment hostingEnvironment,
+        IHttpContextAccessor httpContextAccessor,
+        IEnumerable<ISchemaIdHandler> schemaIdHandlers)
+    : base(settings, hostingEnvironment, httpContextAccessor)
         => _schemaIdHandlers = schemaIdHandlers;
 
     public virtual string SchemaId(Type type)
     {
-        ISchemaIdHandler? handler = _schemaIdHandlers.FirstOrDefault(h => h.CanHandle(type));
-        return handler?.Handle(type) ?? type.Name;
+        var documentName = ResolveOpenApiDocumentName();
+        if (!string.IsNullOrEmpty(documentName))
+        {
+            ISchemaIdHandler? handler = _schemaIdHandlers.FirstOrDefault(h => h.CanHandle(type, documentName));
+            return handler?.Handle(type) ?? type.Name;
+        }
+        return type.Name;
     }
 }
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesHandler.cs b/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesHandler.cs
new file mode 100644
index 000000000000..5744a0075f03
--- /dev/null
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesHandler.cs
@@ -0,0 +1,15 @@
+using Umbraco.Cms.Api.Common.Serialization;
+
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public class SubTypesHandler(IUmbracoJsonTypeInfoResolver umbracoJsonTypeInfoResolver) : ISubTypesHandler
+{
+    public virtual bool CanHandle(Type type)
+        => type.Namespace?.StartsWith("Umbraco.Cms") is true;
+
+    public virtual bool CanHandle(Type type, string documentName)
+        => CanHandle(type);
+
+    public virtual IEnumerable<Type> Handle(Type type)
+        => umbracoJsonTypeInfoResolver.FindSubTypes(type);
+}
diff --git a/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesSelector.cs b/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesSelector.cs
new file mode 100644
index 000000000000..9ba628fb8329
--- /dev/null
+++ b/src/Umbraco.Cms.Api.Common/OpenApi/SubTypesSelector.cs
@@ -0,0 +1,34 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Options;
+using Umbraco.Cms.Api.Common.Serialization;
+using Umbraco.Cms.Core.Configuration.Models;
+using Umbraco.Cms.Core.Hosting;
+using Umbraco.Extensions;
+
+namespace Umbraco.Cms.Api.Common.OpenApi;
+
+public class SubTypesSelector(
+    IOptions<GlobalSettings> settings,
+    IHostingEnvironment hostingEnvironment,
+    IHttpContextAccessor httpContextAccessor,
+    IEnumerable<ISubTypesHandler> subTypeHandlers,
+    IUmbracoJsonTypeInfoResolver umbracoJsonTypeInfoResolver)
+    : OpenApiSelectorBase(settings, hostingEnvironment, httpContextAccessor), ISubTypesSelector
+{
+    public IEnumerable<Type> SubTypes(Type type)
+    {
+        var documentName = ResolveOpenApiDocumentName();
+        if (!string.IsNullOrEmpty(documentName))
+        {
+            // Find the first handler that can handle the type / document name combination
+            ISubTypesHandler? handler = subTypeHandlers.FirstOrDefault(h => h.CanHandle(type, documentName));
+            if (handler != null)
+            {
+                return handler.Handle(type);
+            }
+        }
+
+        // Default implementation to maintain backwards compatibility
+        return umbracoJsonTypeInfoResolver.FindSubTypes(type);
+    }
+}
diff --git a/src/Umbraco.Cms.Api.Management/Configuration/ConfigureUmbracoManagementApiSwaggerGenOptions.cs b/src/Umbraco.Cms.Api.Management/Configuration/ConfigureUmbracoManagementApiSwaggerGenOptions.cs
index 6b67c805af25..74862e3babbf 100644
--- a/src/Umbraco.Cms.Api.Management/Configuration/ConfigureUmbracoManagementApiSwaggerGenOptions.cs
+++ b/src/Umbraco.Cms.Api.Management/Configuration/ConfigureUmbracoManagementApiSwaggerGenOptions.cs
@@ -31,7 +31,6 @@ public void Configure(SwaggerGenOptions swaggerGenOptions)
             });
 
         swaggerGenOptions.OperationFilter<ResponseHeaderOperationFilter>();
-        swaggerGenOptions.SelectSubTypesUsing(_umbracoJsonTypeInfoResolver.FindSubTypes);
         swaggerGenOptions.UseOneOfForPolymorphism();
 
         // Ensure all types that implements the IOpenApiDiscriminator have a $type property in the OpenApi schema with the default value (The class name) that is expected by the server