diff --git a/charts/dim/Chart.yaml b/charts/dim/Chart.yaml
index 1bc7940..fdccfe6 100644
--- a/charts/dim/Chart.yaml
+++ b/charts/dim/Chart.yaml
@@ -20,8 +20,8 @@
 apiVersion: v2
 name: dim
 type: application
-version: 0.0.4
-appVersion: 0.0.4
+version: 0.0.5
+appVersion: 0.0.5
 description: Helm chart for DIM Middle Layer
 home: https://github.com/catenax-ng/dim-repo
 dependencies:
diff --git a/charts/dim/README.md b/charts/dim/README.md
index fbe9398..a408ec0 100644
--- a/charts/dim/README.md
+++ b/charts/dim/README.md
@@ -27,7 +27,7 @@ To use the helm chart as a dependency:
 dependencies:
   - name: dim
     repository: https://phil91.github.io/dim-client
-    version: 0.0.3
+    version: 0.0.5
 ```
 
 ## Requirements
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 34cdc14..e894dba 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -19,7 +19,7 @@
 
 <Project>
   <PropertyGroup>
-    <VersionPrefix>0.0.4</VersionPrefix>
+    <VersionPrefix>0.0.5</VersionPrefix>
     <VersionSuffix></VersionSuffix>
   </PropertyGroup>
 </Project>
diff --git a/src/processes/DimProcess.Library/Callback/CallbackService.cs b/src/processes/DimProcess.Library/Callback/CallbackService.cs
index a5d59d2..a92d49c 100644
--- a/src/processes/DimProcess.Library/Callback/CallbackService.cs
+++ b/src/processes/DimProcess.Library/Callback/CallbackService.cs
@@ -57,6 +57,6 @@ public async Task SendTechnicalUserCallback(Guid externalId, string tokenAddress
             tokenAddress,
             clientId,
             clientSecret);
-        await httpClient.PostAsJsonAsync($"/api/adminstration/serviceAccount/callback/{externalId}", data, JsonSerializerExtensions.Options, cancellationToken).ConfigureAwait(false);
+        await httpClient.PostAsJsonAsync($"/api/administration/serviceAccount/callback/{externalId}", data, JsonSerializerExtensions.Options, cancellationToken).ConfigureAwait(false);
     }
 }
diff --git a/tests/processes/DimProcess.Library.Tests/TechnicalUserProcessHandlerTests.cs b/tests/processes/DimProcess.Library.Tests/TechnicalUserProcessHandlerTests.cs
new file mode 100644
index 0000000..2e5fd88
--- /dev/null
+++ b/tests/processes/DimProcess.Library.Tests/TechnicalUserProcessHandlerTests.cs
@@ -0,0 +1,92 @@
+using Dim.Clients.Api.Cf;
+using Dim.DbAccess;
+using Dim.DbAccess.Repositories;
+using Dim.Entities.Entities;
+using Dim.Entities.Enums;
+using DimProcess.Library.Callback;
+using DimProcess.Library.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Org.Eclipse.TractusX.Portal.Backend.Framework.Models.Configuration;
+using System.Security.Cryptography;
+
+namespace DimProcess.Library.Tests;
+
+public class TechnicalUserProcessHandlerTests
+{
+    private readonly ICallbackService _callbackService;
+    private readonly IFixture _fixture;
+    private readonly IDimRepositories _repositories;
+    private readonly ITenantRepository _tenantRepositories;
+    private readonly IOptions<TechnicalUserSettings> _options;
+    private readonly ICfClient _cfClient;
+    private readonly TechnicalUserProcessHandler _sut;
+
+    public TechnicalUserProcessHandlerTests()
+    {
+        _fixture = new Fixture().Customize(new AutoFakeItEasyCustomization { ConfigureMembers = true });
+        _fixture.Behaviors.OfType<ThrowingRecursionBehavior>().ToList()
+            .ForEach(b => _fixture.Behaviors.Remove(b));
+        _fixture.Behaviors.Add(new OmitOnRecursionBehavior());
+
+        _repositories = A.Fake<IDimRepositories>();
+        _tenantRepositories = A.Fake<ITenantRepository>();
+
+        A.CallTo(() => _repositories.GetInstance<ITenantRepository>()).Returns(_tenantRepositories);
+
+        _cfClient = A.Fake<ICfClient>();
+        _callbackService = A.Fake<ICallbackService>();
+        _options = Options.Create(new TechnicalUserSettings
+        {
+            EncryptionConfigIndex = 0,
+            EncryptionConfigs = new[]
+            {
+                new EncryptionModeConfig
+                {
+                    Index = 0,
+                    CipherMode = CipherMode.CBC,
+                    PaddingMode = PaddingMode.PKCS7,
+                    EncryptionKey = "2c68516f23467028602524534824437e417e253c29546c563c2f5e3d485e7667"
+                }
+            }
+        });
+
+        _sut = new TechnicalUserProcessHandler(_repositories, _cfClient, _callbackService, _options);
+    }
+
+    #region CreateSubaccount
+
+    [Fact]
+    public async Task CreateSubaccount_WithValidData_ReturnsExpected()
+    {
+        // Arrange
+        var technicalUserId = Guid.NewGuid();
+        var serviceBindingId = Guid.NewGuid();
+        var technicalUser = new TechnicalUser(Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid(), "test", Guid.NewGuid());
+        A.CallTo(() => _tenantRepositories.GetSpaceIdAndTechnicalUserName(technicalUserId))
+            .Returns(new ValueTuple<Guid?, string>(Guid.NewGuid(), "test"));
+        A.CallTo(() => _cfClient.GetServiceBinding("test", A<Guid>._, A<string>._, A<CancellationToken>._))
+            .Returns(serviceBindingId);
+        A.CallTo(() => _cfClient.GetServiceBindingDetails(serviceBindingId, A<CancellationToken>._))
+            .Returns(new ServiceCredentialBindingDetailResponse(new Credentials("https://example.org", new Uaa("cl1", "test123", "https://example.org/test", "https://example.org/api"))));
+        A.CallTo(() => _tenantRepositories.AttachAndModifyTechnicalUser(A<Guid>._, A<Action<TechnicalUser>>._, A<Action<TechnicalUser>>._))
+            .Invokes((Guid _, Action<TechnicalUser>? initialize, Action<TechnicalUser> modify) =>
+            {
+                initialize?.Invoke(technicalUser);
+                modify(technicalUser);
+            });
+
+        // Act
+        var result = await _sut.GetTechnicalUserData("test", technicalUserId, CancellationToken.None);
+
+        // Assert
+        result.modified.Should().BeFalse();
+        result.processMessage.Should().BeNull();
+        result.stepStatusId.Should().Be(ProcessStepStatusId.DONE);
+        result.nextStepTypeIds.Should().ContainSingle().Which.Should().Be(ProcessStepTypeId.SEND_TECHNICAL_USER_CALLBACK);
+        technicalUser.EncryptionMode.Should().NotBeNull().And.Be(0);
+        technicalUser.ClientId.Should().Be("cl1");
+    }
+
+    #endregion
+
+}