diff --git a/README.md b/README.md
index 0d3b635..61a38c4 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ This project is the outcome of my self-learning about the API Testing Automation
 - [Lombok](https://projectlombok.org/) has been used to generate Getter and Setters automatically for post body requests.
 - FAKE Rest APIs on [Reqres.in](https://reqres.in/) has been used for testing.
 - End to End scenarios have been added for the [restful booker APIs](https://restful-booker.herokuapp.com/apidoc/index.html).
+- Happy and Sad Path Scenarios have been added for the [restful-ecommerce APIs](https://github.com/mfaisalkhatri/restful-ecommerce)
 
 ## :hammer_and_wrench: Talking more about the Scenarios Covered in this project:
 You will get the answers to the following questions and its respective working code example with [Playwright Java](https://playwright.dev/java/docs/api-testing#writing-api-test) framework in this repository:
@@ -32,10 +33,14 @@ You will get the answers to the following questions and its respective working c
 - How to use `Lombok` for writing the builder pattern code?
 - How to use Builder Pattern for test data generation using [Data Faker](https://github.com/datafaker-net/datafaker)?
 - How to write end-to-end api tests?
+- How to write Happy Path scenarios for the APIs?
+- How to write Sad Path scenarios for the APIs? 
 
 ## :writing_hand: Blog Links
 - [What is API Testing?](https://mfaisalkhatri.github.io/2020/08/08/apitesting/)
 - [How to perform End to End API Testing using Playwright with Java and TestNG](https://medium.com/@iamfaisalkhatri/how-to-perform-end-to-end-api-testing-using-playwright-with-java-and-testng-26b318927115)
+- [Playwright Java API Testing | How to test POST requests?](https://medium.com/@iamfaisalkhatri/playwright-java-api-testing-how-to-test-post-requests-4c9102d3ab03)
+- [Playwright Java API Testing | How to test GET requests?](https://medium.com/@iamfaisalkhatri/playwright-java-api-testing-how-to-test-get-requests-c036b984cc6d)
 
 ## :question: Need Assistance?
 
diff --git a/src/test/java/io/github/mfaisalkhatri/api/restfulecommerce/SadPathTests.java b/src/test/java/io/github/mfaisalkhatri/api/restfulecommerce/SadPathTests.java
index 10e0c96..5d54ce5 100644
--- a/src/test/java/io/github/mfaisalkhatri/api/restfulecommerce/SadPathTests.java
+++ b/src/test/java/io/github/mfaisalkhatri/api/restfulecommerce/SadPathTests.java
@@ -9,8 +9,8 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import static io.github.mfaisalkhatri.api.restfulecommerce.testdata.OrderDataBuilder.getNewOrder;
-import static io.github.mfaisalkhatri.api.restfulecommerce.testdata.OrderDataBuilder.getOrderDataWithMissingProductId;
+import static io.github.mfaisalkhatri.api.restfulecommerce.testdata.OrderDataBuilder.*;
+import static io.github.mfaisalkhatri.api.restfulecommerce.testdata.TokenBuilder.getCredentials;
 import static org.testng.Assert.assertEquals;
 
 public class SadPathTests extends BaseTest {
@@ -103,4 +103,74 @@ public void testShouldNotFetchOrder_WhenNoOrderExistsForProductId() {
         assertEquals(responseObject.get("message"), "No Order found with the given parameters!");
     }
 
+    @Test
+    public void testShouldNotUpdateOrder_WhenTokenIsMissing() {
+
+        int orderId = 1;
+
+        final OrderData updatedOrder = getUpdatedOrder();
+
+        final APIResponse response = this.request.put("/updateOrder/" + orderId, RequestOptions.create()
+                .setData(updatedOrder));
+
+        final JSONObject responseObject = new JSONObject(response.text());
+
+        assertEquals(response.status(), 403);
+        assertEquals(responseObject.get("message"), "Forbidden! Token is missing!");
+    }
+
+    @Test
+    public void testShouldNotUpdateOrder_WhenOrderIdIsNotFound() {
+        final APIResponse authResponse = this.request.post("/auth", RequestOptions.create().setData(getCredentials()));
+
+        final JSONObject authResponseObject = new JSONObject(authResponse.text());
+        final String token = authResponseObject.get("token").toString();
+
+        final OrderData updatedOrder = getUpdatedOrder();
+
+        final int orderId = 90;
+
+        final APIResponse response = this.request.put("/updateOrder/" + orderId, RequestOptions.create()
+                .setHeader("Authorization", token)
+                .setData(updatedOrder));
+
+
+        final JSONObject responseObject = new JSONObject(response.text());
+
+        assertEquals(response.status(), 404);
+        assertEquals(responseObject.get("message"), "No Order found with the given Order Id!");
+
+    }
+
+    @Test
+    public void testShouldNotUpdateOrder_WhenOrderDetailsAreNotProvided() {
+        final APIResponse authResponse = this.request.post("/auth", RequestOptions.create().setData(getCredentials()));
+
+        final JSONObject authResponseObject = new JSONObject(authResponse.text());
+        final String token = authResponseObject.get("token").toString();
+
+        final int orderId = 2;
+
+        final APIResponse response = this.request.put("/updateOrder/" + orderId, RequestOptions.create()
+                .setHeader("Authorization", token));
+
+        final JSONObject responseObject = new JSONObject(response.text());
+
+        assertEquals(response.status(), 400);
+        assertEquals(responseObject.get("message"), "Each Order must have user_id, product_id, product_name, product_amount, qty, tax_amt, and total_amt!");
+    }
+
+    @Test
+    public void testShouldNotUpdateOrderWithInvalidToken() {
+        final int orderId = 2;
+
+        final APIResponse response = this.request.put("/updateOrder/" + orderId, RequestOptions.create()
+                .setHeader("Authorization", "token273678"));
+
+        final JSONObject responseObject = new JSONObject(response.text());
+
+        assertEquals(response.status(), 400);
+        assertEquals(responseObject.get("message"), "Failed to authenticate token!");
+    }
+
 }
diff --git a/test-suite/testng-restfulecommerce.xml b/test-suite/testng-restfulecommerce.xml
index 23897ca..53be956 100644
--- a/test-suite/testng-restfulecommerce.xml
+++ b/test-suite/testng-restfulecommerce.xml
@@ -11,6 +11,9 @@
                     <include name="testShouldNotFetchOrder_WhenNoOrderExistsForOrderId"/>
                     <include name="testShouldNotFetchOrder_WhenNoOrderExistsForUserId"/>
                     <include name="testShouldNotFetchOrder_WhenNoOrderExistsForProductId"/>
+                    <include name="testShouldNotUpdateOrder_WhenTokenIsMissing"/>
+                    <include name="testShouldNotUpdateOrder_WhenOrderIdIsNotFound"/>
+                    <include name="testShouldNotUpdateOrderWithInvalidToken"/>
                 </methods>
             </class>
         </classes>
@@ -35,4 +38,13 @@
             </class>
         </classes>
     </test>
+    <test name="Testing Sad Path Scenarios of Restful E-Commerce APIs after orders are created">
+        <classes>
+            <class name="io.github.mfaisalkhatri.api.restfulecommerce.SadPathTests">
+                <methods>
+                    <include name="testShouldNotUpdateOrder_WhenOrderDetailsAreNotProvided"/>
+                </methods>
+            </class>
+        </classes>
+    </test>
 </suite>
\ No newline at end of file