diff --git a/lib/utils/errorHandling/ResponseErrorContainer.js b/lib/utils/errorHandling/ResponseErrorContainer.js
index 08bfd4e4..cb1e83f4 100644
--- a/lib/utils/errorHandling/ResponseErrorContainer.js
+++ b/lib/utils/errorHandling/ResponseErrorContainer.js
@@ -1,3 +1,5 @@
+import { ERROR_CODE_GENERIC } from '../../constants';
+
 /**
  * @class ResponseErrorContainer
  * @description A container class for handling individual errors from a response.
@@ -13,7 +15,7 @@ export class ResponseErrorContainer {
   }
 
   get code() {
-    return this.error.code;
+    return this.error.code || ERROR_CODE_GENERIC;
   }
 
   get type() {
diff --git a/lib/utils/errorHandling/ResponseErrorContainer.test.js b/lib/utils/errorHandling/ResponseErrorContainer.test.js
index 8875725a..9afa5154 100644
--- a/lib/utils/errorHandling/ResponseErrorContainer.test.js
+++ b/lib/utils/errorHandling/ResponseErrorContainer.test.js
@@ -1,3 +1,6 @@
+/* Developed collaboratively using AI (GitHub Copilot) */
+
+import { ERROR_CODE_GENERIC } from '../../constants';
 import { ResponseErrorContainer } from './ResponseErrorContainer';
 
 describe('ResponseErrorContainer', () => {
@@ -14,11 +17,11 @@ describe('ResponseErrorContainer', () => {
     expect(errorContainer.type).toBe('testType');
   });
 
-  it('should return undefined if no message, code, or type is provided', () => {
+  it('should return undefined if no message or type is provided, and the generic code', () => {
     const errorContainer = new ResponseErrorContainer();
 
     expect(errorContainer.message).toBeUndefined();
-    expect(errorContainer.code).toBeUndefined();
+    expect(errorContainer.code).toBe(ERROR_CODE_GENERIC);
     expect(errorContainer.type).toBeUndefined();
   });
 
diff --git a/lib/utils/errorHandling/ResponseErrorsContainer.test.js b/lib/utils/errorHandling/ResponseErrorsContainer.test.js
index d382bf97..ee5e6057 100644
--- a/lib/utils/errorHandling/ResponseErrorsContainer.test.js
+++ b/lib/utils/errorHandling/ResponseErrorsContainer.test.js
@@ -1,53 +1,146 @@
+/* Developed collaboratively using AI (GitHub Copilot) */
+
 import { ERROR_CODE_GENERIC } from '../../constants';
 import { ResponseErrorsContainer } from './ResponseErrorsContainer';
 import { ResponseErrorContainer } from './ResponseErrorContainer';
 
 describe('ResponseErrorsContainer', () => {
-  let mockResponse; let
-    mockResponseBody;
+  let mockResponse; let mockResponseBody; let
+    errorStrategy;
 
   beforeEach(() => {
     mockResponseBody = {
-      errors: [{ code: '404', message: 'Not found' }],
-      total_records: 1,
+      errors: [
+        { code: 'foo', message: 'Something went wrong' },
+        { code: 'bar', message: 'Internal server error' },
+      ],
+      total_records: 2,
     };
+
     mockResponse = {
       clone: jest.fn().mockReturnThis(),
       json: jest.fn().mockResolvedValue(mockResponseBody),
-      status: 404,
+      status: 500,
+    };
+
+    errorStrategy = {
+      handle: jest.fn(),
     };
   });
 
-  it('should create a new ResponseErrorsContainer instance from a response', async () => {
+  it('should create an instance with response body and status', async () => {
     const { handler } = await ResponseErrorsContainer.create(mockResponse);
 
     expect(handler).toBeInstanceOf(ResponseErrorsContainer);
-    expect(handler.status).toBe(404); // Check for status
-    expect(handler.errorMessages).toEqual(['Not found']);
+    expect(handler.status).toBe(500); // Check HTTP status
+    expect(handler.totalRecords).toBe(2); // Check total records
   });
 
-  it('should return a specific error by code', async () => {
+  it('should create a handler when response contains a single error object', async () => {
+    const singleErrorBody = { code: 'baz', message: 'Bad Request' };
+
+    mockResponse.json.mockResolvedValueOnce(singleErrorBody);
+
     const { handler } = await ResponseErrorsContainer.create(mockResponse);
-    const error = handler.getError('404');
+
+    expect(handler).toBeInstanceOf(ResponseErrorsContainer);
+    expect(handler.errorMessages).toEqual(['Bad Request']);
+  });
+
+  it('should return error messages as an array', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+
+    expect(handler.errorMessages).toEqual(['Something went wrong', 'Internal server error']);
+  });
+
+  it('should return error codes as an array', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+
+    expect(handler.errorCodes).toEqual(['foo', 'bar']);
+  });
+
+  it('should return all errors as an array of ResponseErrorContainer instances', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+    const errors = handler.errors;
+
+    expect(errors).toHaveLength(2);
+    expect(errors[0]).toBeInstanceOf(ResponseErrorContainer);
+    expect(errors[1].code).toBe('bar');
+  });
+
+  it('should return all errors as a map', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+    const errorsMap = handler.getErrors();
+
+    expect(errorsMap.size).toBe(2); // Check size of map
+    expect(errorsMap.get('foo').message).toBe('Something went wrong'); // Check first error
+  });
+
+  it('should get a specific error by code', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+    const error = handler.getError('foo');
 
     expect(error).toBeInstanceOf(ResponseErrorContainer);
-    expect(error.message).toBe('Not found');
-    expect(error.code).toBe('404');
+    expect(error.code).toBe('foo');
+    expect(error.message).toBe('Something went wrong');
+  });
+
+  it('should return the first error when no code is provided', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+    const error = handler.getError();
+
+    expect(error.code).toBe('foo');
+  });
+
+  it('should return a generic error when the requested code is not found', async () => {
+    const { handler } = await ResponseErrorsContainer.create(mockResponse);
+    const error = handler.getError('999'); // Code that does not exist
+
+    expect(error.code).toBe(ERROR_CODE_GENERIC); // Fallback to generic error
+  });
+
+  it('should normalize string error to structured error container', () => {
+    const stringError = 'This is an error';
+    const handler = new ResponseErrorsContainer({ errors: [stringError], total_records: 1 }, mockResponse);
+
+    const error = handler.getError();
+
+    expect(error.message).toBe(stringError);
+    expect(error.code).toBe(ERROR_CODE_GENERIC);
+  });
+
+  it('should normalize invalid JSON error string to generic error', () => {
+    const invalidJsonError = '{"invalidJson": true';
+    const handler = new ResponseErrorsContainer({ errors: [invalidJsonError], total_records: 1 }, mockResponse);
+
+    const error = handler.getError();
+
+    expect(error.message).toBe(invalidJsonError); // Should return the original string
+    expect(error.code).toBe(ERROR_CODE_GENERIC);
   });
 
-  it('should handle unknown errors', async () => {
-    const mockUnknownError = { errors: ['Unknown error'] };
+  it('should handle unknown objects without message by converting them to a string', () => {
+    const unknownError = { invalid: 'no message' };
+    const handler = new ResponseErrorsContainer({ errors: [unknownError], total_records: 1 }, mockResponse);
+
+    const error = handler.getError();
 
-    mockResponse.json.mockResolvedValueOnce(mockUnknownError);
+    expect(error.message).toBe(JSON.stringify(unknownError)); // Should stringify the object
+    expect(error.code).toBe(ERROR_CODE_GENERIC);
+  });
 
+  it('should handle response errors using a provided strategy', async () => {
     const { handler } = await ResponseErrorsContainer.create(mockResponse);
 
-    expect(handler.errorMessages).toEqual(['Unknown error']);
+    handler.handle(errorStrategy);
+    expect(errorStrategy.handle).toHaveBeenCalledWith(handler); // Ensure strategy is invoked with the handler
   });
 
-  it('should return generic error when no error code is found', async () => {
+  it('should handle empty error body by returning generic error', async () => {
+    mockResponse.json.mockResolvedValueOnce({}); // Empty body
     const { handler } = await ResponseErrorsContainer.create(mockResponse);
-    const error = handler.getError('500');
+
+    const error = handler.getError();
 
     expect(error.code).toBe(ERROR_CODE_GENERIC);
   });