diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/group-dir-import/group-dir-import.component.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/group-dir-import/group-dir-import.component.ts
index d0678ee..9203f5b 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/group-dir-import/group-dir-import.component.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/group-dir-import/group-dir-import.component.ts
@@ -55,11 +55,10 @@ export class GroupDirImportComponent implements OnInit {
     forkJoin(requests).pipe(
       // finalize is executed after all requests are completed or when an error occurs
       finalize(() => {
-        // Show Swal notification after all requests are completed
         Swal.fire({
           icon: "success",
-          title: "Completed",
-          text: `${numAdded} new groups added`,
+          title: "Abgeschlossen",
+          text: `${numAdded} neue Gruppen hinzugefügt`,
           position: "center",
           showConfirmButton: false,
           timer: 3000
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/login/login.component.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/login/login.component.ts
index 379d917..8c40fc2 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/login/login.component.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/login/login.component.ts
@@ -36,8 +36,8 @@ export class LoginComponent {
         this.waitRes = false;
         Swal.fire({
           icon: "error",
-          title: "Oops...",
-          text: err.error.messages.join("\n"),
+          title: "Ungültiger Benutzername oder Passwort",
+          text: "Bitte überprüfen Sie Ihre Anmeldedaten und versuchen Sie es erneut.",
         });
       },
       complete: () => this.waitRes = false
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/user-group-dir-import/user-group-dir-import.component.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/user-group-dir-import/user-group-dir-import.component.ts
index da9f6fb..2333e79 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/user-group-dir-import/user-group-dir-import.component.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/user-group-dir-import/user-group-dir-import.component.ts
@@ -71,8 +71,8 @@ export class UserGroupDirImportComponent implements OnInit, AfterViewInit {
         // Show Swal notification after all requests are completed
         Swal.fire({
           icon: "success",
-          title: "Completed",
-          text: `${numAdded} new users added`,
+          title: "Abgeschlossen",
+          text: `${numAdded} neue Benutzer hinzugefügt`,
           position: "center",
           showConfirmButton: false,
           timer: 3000
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/api/authentication.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/api/authentication.service.ts
index 531cd8b..fde1c55 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/api/authentication.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/api/authentication.service.ts
@@ -75,7 +75,7 @@ export class AuthenticationService {
     Swal.fire({
       icon: "error",
       title: "Oops...",
-      text: "The backend application is not responding.",
+      text: "Der Server antwortet nicht.",
     });
   }
 }