diff --git a/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.test.tsx b/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.test.tsx
new file mode 100644
index 00000000000..45290a8e3d0
--- /dev/null
+++ b/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.test.tsx
@@ -0,0 +1,171 @@
+/*
+ *  Copyright 2023 Collate.
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+import { act, render, screen } from '@testing-library/react';
+import React from 'react';
+import { MemoryRouter } from 'react-router-dom';
+import PageLayoutV1 from '../../components/PageLayoutV1/PageLayoutV1';
+import { ENTITY_PERMISSIONS } from '../../mocks/Permissions.mock';
+import { MOCK_ALL_CLASSIFICATIONS } from '../TagsPage/TagsPage.mock';
+import ClassificationVersionPage from './ClassificationVersionPage';
+
+const mockParams = {
+  fqn: 'table',
+  version: '0.1',
+};
+
+jest.mock('react-router-dom', () => ({
+  useHistory: jest.fn().mockImplementation(() => ({
+    push: jest.fn(),
+  })),
+  useParams: jest.fn().mockImplementation(() => mockParams),
+}));
+
+jest.mock(
+  '../../components/ClassificationDetails/ClassificationDetails',
+  () => ({
+    ClassificationDetails: jest
+      .fn()
+      .mockImplementation(() => <div>ClassificationDetails</div>),
+  })
+);
+
+jest.mock(
+  '../../components/common/ErrorWithPlaceholder/ErrorPlaceHolder',
+  () => {
+    return jest.fn().mockReturnValue(<div>testErrorPlaceHolder</div>);
+  }
+);
+
+jest.mock(
+  '../../components/Entity/EntityVersionTimeLine/EntityVersionTimeLine',
+  () => {
+    return jest.fn().mockReturnValue(<div>testEntityVersionTimeLine</div>);
+  }
+);
+
+jest.mock('../../components/Loader/Loader', () => {
+  return jest.fn().mockReturnValue(<div>Loader component</div>);
+});
+
+jest.mock('../../components/PageLayoutV1/PageLayoutV1', () => ({
+  __esModule: true,
+  default: jest
+    .fn()
+    .mockImplementation(({ children }) => <div>{children}</div>),
+}));
+
+const mockGetEntityPermissionByFqn = jest
+  .fn()
+  .mockImplementation(() => Promise.resolve(ENTITY_PERMISSIONS));
+
+jest.mock('../../components/PermissionProvider/PermissionProvider', () => ({
+  usePermissionProvider: jest.fn().mockImplementation(() => ({
+    getEntityPermissionByFqn: mockGetEntityPermissionByFqn,
+  })),
+}));
+
+jest.mock('../../utils/PermissionsUtils', () => ({
+  checkPermission: jest.fn().mockReturnValue(true),
+  DEFAULT_ENTITY_PERMISSION: {
+    ViewAll: true,
+    ViewBasic: true,
+  },
+}));
+
+jest.mock('../../rest/tagAPI', () => ({
+  getClassificationByName: jest
+    .fn()
+    .mockImplementation(() => Promise.resolve(MOCK_ALL_CLASSIFICATIONS)),
+  getClassificationVersionData: jest
+    .fn()
+    .mockImplementation(() => Promise.resolve(MOCK_ALL_CLASSIFICATIONS)),
+  getClassificationVersionsList: jest
+    .fn()
+    .mockImplementation(() => Promise.resolve(MOCK_ALL_CLASSIFICATIONS)),
+}));
+
+jest.mock('../../utils/RouterUtils', () => ({
+  getClassificationVersionsPath: jest.fn(),
+  getClassificationDetailsPath: jest.fn(),
+}));
+
+jest.mock('../../utils/ToastUtils', () => ({
+  showErrorToast: jest.fn(),
+}));
+
+describe('ClassificationVersionPage component', () => {
+  it('should render Loader', async () => {
+    render(<ClassificationVersionPage />, {
+      wrapper: MemoryRouter,
+    });
+
+    const loader = screen.getByText('Loader component');
+
+    expect(loader).toBeInTheDocument();
+  });
+
+  it('should render EntityVersionTimeLine', async () => {
+    await act(async () => {
+      render(<ClassificationVersionPage />, {
+        wrapper: MemoryRouter,
+      });
+    });
+
+    const versionData = await screen.findByTestId('version-data');
+    const entityVersionTimeLine = await screen.findByText(
+      'testEntityVersionTimeLine'
+    );
+
+    expect(versionData).toBeInTheDocument();
+    expect(entityVersionTimeLine).toBeInTheDocument();
+  });
+
+  it('should renders ErrorPlaceHolder with permission error', async () => {
+    mockGetEntityPermissionByFqn.mockResolvedValueOnce({});
+    render(<ClassificationVersionPage />, {
+      wrapper: MemoryRouter,
+    });
+
+    const errorPlaceholder = await screen.findByText('testErrorPlaceHolder');
+
+    expect(errorPlaceholder).toBeInTheDocument();
+  });
+
+  it('should renders ClassificationDetails in version view with all permissions', async () => {
+    await act(async () => {
+      render(<ClassificationVersionPage />, {
+        wrapper: MemoryRouter,
+      });
+    });
+
+    expect(mockGetEntityPermissionByFqn).toHaveBeenCalled();
+
+    expect(screen.findByText('testClassificationDetails')).toBeTruthy();
+  });
+
+  it('should render ClassificationVersionPage with PageLayoutV1 and child components', async () => {
+    await act(async () => {
+      render(<ClassificationVersionPage />, {
+        wrapper: MemoryRouter,
+      });
+    });
+
+    expect(PageLayoutV1).toHaveBeenCalled();
+    expect((PageLayoutV1 as jest.Mock).mock.calls[0][0].className).toBe(
+      'version-page-container'
+    );
+    expect((PageLayoutV1 as jest.Mock).mock.calls[0][0].pageTitle).toBe(
+      'label.entity-version-detail-plural'
+    );
+  });
+});
diff --git a/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.tsx b/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.tsx
index 9f105e646df..9e90bc9e860 100644
--- a/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.tsx
+++ b/openmetadata-ui/src/main/resources/ui/src/pages/ClassificationVersionPage/ClassificationVersionPage.tsx
@@ -11,6 +11,7 @@
  *  limitations under the License.
  */
 
+import { AxiosError } from 'axios';
 import { isEmpty, toString } from 'lodash';
 import React, { useCallback, useEffect, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
@@ -25,7 +26,6 @@ import {
   OperationPermission,
   ResourceEntity,
 } from '../../components/PermissionProvider/PermissionProvider.interface';
-import { FQN_SEPARATOR_CHAR } from '../../constants/char.constants';
 import { ERROR_PLACEHOLDER_TYPE } from '../../enums/common.enum';
 import { Classification } from '../../generated/entity/classification/classification';
 import { EntityHistory } from '../../generated/type/entityHistory';
@@ -39,11 +39,12 @@ import {
   getClassificationDetailsPath,
   getClassificationVersionsPath,
 } from '../../utils/RouterUtils';
+import { showErrorToast } from '../../utils/ToastUtils';
 
 function ClassificationVersionPage() {
   const { t } = useTranslation();
   const history = useHistory();
-  const { fqn: tagCategoryName, version } =
+  const { fqn: classificationName, version } =
     useParams<{ fqn: string; version: string }>();
   const { getEntityPermissionByFqn } = usePermissionProvider();
   const [currentVersionData, setCurrentVersionData] = useState<Classification>(
@@ -60,11 +61,6 @@ function ClassificationVersionPage() {
     {} as EntityHistory
   );
 
-  const classificationName = useMemo(
-    () => tagCategoryName.split(FQN_SEPARATOR_CHAR)[0],
-    [tagCategoryName]
-  );
-
   const viewVersionPermission = useMemo(
     () =>
       classificationPermissions.ViewAll || classificationPermissions.ViewBasic,
@@ -106,9 +102,10 @@ function ClassificationVersionPage() {
         setIsVersionDataLoading(true);
         if (viewVersionPermission) {
           const response = await getClassificationVersionData(id, version);
-
           setCurrentVersionData(response);
         }
+      } catch (error) {
+        showErrorToast(error as AxiosError);
       } finally {
         setIsVersionDataLoading(false);
       }
@@ -158,7 +155,7 @@ function ClassificationVersionPage() {
 
     return (
       <>
-        <div className="version-data">
+        <div className="version-data" data-testid="version-data">
           {isVersionDataLoading ? (
             <Loader />
           ) : (
diff --git a/openmetadata-ui/src/main/resources/ui/src/pages/TagsPage/TagsPage.tsx b/openmetadata-ui/src/main/resources/ui/src/pages/TagsPage/TagsPage.tsx
index b6c77ffa560..fb6204d1908 100644
--- a/openmetadata-ui/src/main/resources/ui/src/pages/TagsPage/TagsPage.tsx
+++ b/openmetadata-ui/src/main/resources/ui/src/pages/TagsPage/TagsPage.tsx
@@ -117,10 +117,13 @@ const TagsPage = () => {
   );
 
   const fetchCurrentClassificationPermission = async () => {
+    if (!currentClassification?.id) {
+      return;
+    }
     try {
       const response = await getEntityPermission(
         ResourceEntity.CLASSIFICATION,
-        currentClassification?.id as string
+        currentClassification?.id
       );
       setClassificationPermissions(response);
     } catch (error) {