diff --git a/src/main/java/it/pagopa/swclient/mil/idpay/resource/TransactionsResource.java b/src/main/java/it/pagopa/swclient/mil/idpay/resource/TransactionsResource.java
index 451c59e..eb181b6 100644
--- a/src/main/java/it/pagopa/swclient/mil/idpay/resource/TransactionsResource.java
+++ b/src/main/java/it/pagopa/swclient/mil/idpay/resource/TransactionsResource.java
@@ -10,7 +10,6 @@
 import it.pagopa.swclient.mil.idpay.bean.VerifyCie;
 import it.pagopa.swclient.mil.idpay.service.TransactionsService;
 import jakarta.annotation.security.RolesAllowed;
-import jakarta.inject.Inject;
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Pattern;
@@ -24,8 +23,12 @@
 
 @Path("/transactions")
 public class TransactionsResource {
-    @Inject
-    TransactionsService transactionsService;
+
+    private final TransactionsService transactionsService;
+
+    public TransactionsResource(TransactionsService transactionsService) {
+        this.transactionsService = transactionsService;
+    }
 
     /**
      * The value of the Max-Retries header to be sent in response to the createTransaction API
@@ -118,10 +121,14 @@ public Uni<Response> cancelTransaction(@Valid @BeanParam CommonHeader headers,
          */
         AcqMerchMapper.map(headers);
         
-        return transactionsService.cancelTransaction(headers, transactionId).chain(() ->
-            Uni.createFrom().item(
-                    Response.status(Status.NO_CONTENT).build())
-        );
+        return transactionsService.cancelTransaction(headers, transactionId).chain(res -> {
+            Log.debugf("TransactionsResource -> TransactionsService -> cancelTransaction - Response %s", res);
+
+            return Uni.createFrom().item(
+                    Response.status(Response.Status.OK)
+                            .entity(res)
+                            .build());
+        });
     }
 
     private URI getTransactionURI(String milTransactionId) {
diff --git a/src/main/java/it/pagopa/swclient/mil/idpay/service/TransactionsService.java b/src/main/java/it/pagopa/swclient/mil/idpay/service/TransactionsService.java
index e334f09..c0b37f2 100644
--- a/src/main/java/it/pagopa/swclient/mil/idpay/service/TransactionsService.java
+++ b/src/main/java/it/pagopa/swclient/mil/idpay/service/TransactionsService.java
@@ -25,7 +25,10 @@
 import it.pagopa.swclient.mil.idpay.dao.IdpayTransactionEntity;
 import it.pagopa.swclient.mil.idpay.dao.IdpayTransactionRepository;
 import jakarta.enterprise.context.ApplicationScoped;
-import jakarta.ws.rs.*;
+import jakarta.ws.rs.BadRequestException;
+import jakarta.ws.rs.InternalServerErrorException;
+import jakarta.ws.rs.NotFoundException;
+import jakarta.ws.rs.WebApplicationException;
 import jakarta.ws.rs.core.Response;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
 import org.eclipse.microprofile.rest.client.inject.RestClient;
@@ -275,6 +278,7 @@ protected Transaction createTransactionFromIdpayTransactionEntity(IdpayTransacti
         transaction.setCoveredAmount(entity.idpayTransaction.getCoveredAmount());
         transaction.setStatus(entity.idpayTransaction.getStatus());
         transaction.setSecondFactor(secondFactor);
+        transaction.setLastUpdate(entity.idpayTransaction.getLastUpdate());
 
         return transaction;
     }
@@ -353,7 +357,7 @@ protected IdpayTransactionEntity updateIdpayTransactionEntity(CommonHeader heade
         return trEntity;
     }
 
-    public Uni<Void> cancelTransaction(CommonHeader headers, String transactionId) {
+    public Uni<Transaction> cancelTransaction(CommonHeader headers, String transactionId) {
 
         Log.debugf("TransactionsService -> cancelTransaction - Input parameters: %s, %s", headers, transactionId);
 
@@ -394,7 +398,7 @@ public Uni<Void> cancelTransaction(CommonHeader headers, String transactionId) {
 
                                                             return updEntity;
                                                         })
-                                                        .chain(() -> Uni.createFrom().voidItem());
+                                                        .chain(result -> Uni.createFrom().item(createTransactionFromIdpayTransactionEntity(result, null, null, false)));
                                             })
                             );
                 });
diff --git a/src/main/resources/META-INF/openapi.yaml b/src/main/resources/META-INF/openapi.yaml
index e960e5a..100a7c4 100644
--- a/src/main/resources/META-INF/openapi.yaml
+++ b/src/main/resources/META-INF/openapi.yaml
@@ -162,8 +162,8 @@ paths:
       operationId: cancelTransaction
       summary: Cancels an IDPay transaction
       responses:
-        "204":
-          description: Transaction cancelled successfully
+        "200":
+          $ref: '#/components/responses/Transaction'
         "400":
           $ref: '#/components/responses/Error'
         "401":
@@ -511,6 +511,13 @@ components:
       type: string
       pattern: "^[0-9a-zA-Z]{8}$"
       example: "12345678"
+
+    TransactionLastUpdate:
+      description: Timestamp of last update of the transaction
+      type: string
+      format: date-time
+      maxLength: 19
+      example: "2024-04-04T12:45:33"
     
     TransactionLocation:
       description: URL of the transaction
@@ -752,6 +759,8 @@ components:
           $ref: '#/components/schemas/InitiativeId'
         timestamp:
           $ref: '#/components/schemas/TransactionTimestamp'
+        lastUpdate:
+          $ref: '#/components/schemas/TransactionLastUpdate'
         goodsCost:
           $ref: '#/components/schemas/GoodsCost'
         trxCode:
@@ -775,6 +784,7 @@ components:
         milTransactionId: "ccadc1c4-3913-431e-a569-6cf2ce60946c"
         initiativeId: "649c50b5a03f655e6543af06"
         timestamp: "2023-09-11T12:45:33"
+        lastUpdate: "2024-04-04T15:18:25"
         goodsCost: 50054
         trxCode: "rwkmek1x"
         coveredAmount: 10012
diff --git a/src/test/java/it/pagopa/swclient/mil/idpay/TransactionsResourceTest.java b/src/test/java/it/pagopa/swclient/mil/idpay/TransactionsResourceTest.java
index 1e3f9f7..0b270e9 100644
--- a/src/test/java/it/pagopa/swclient/mil/idpay/TransactionsResourceTest.java
+++ b/src/test/java/it/pagopa/swclient/mil/idpay/TransactionsResourceTest.java
@@ -744,7 +744,7 @@ void deleteTransactionTest_OKAborted() {
                 .extract()
                 .response();
 
-        Assertions.assertEquals(204, response.statusCode());
+        Assertions.assertEquals(200, response.statusCode());
 
     }
 
@@ -788,7 +788,7 @@ void deleteTransactionTest_OKCancelled() {
                 .response();
 
         syncTrxStatus.setStatus(TransactionStatus.CREATED);
-        Assertions.assertEquals(204, response.statusCode());
+        Assertions.assertEquals(200, response.statusCode());
 
     }
 
@@ -999,7 +999,7 @@ void deleteTransactionTest_KOUpdate() {
                 .extract()
                 .response();
 
-        Assertions.assertEquals(204, response.statusCode());
+        Assertions.assertEquals(200, response.statusCode());
 
     }
 
@@ -1081,7 +1081,7 @@ void deleteTransactionTest_KOCertAndOK_Aborted() {
                 .extract()
                 .response();
 
-        Assertions.assertEquals(204, response.statusCode());
+        Assertions.assertEquals(200, response.statusCode());
 
     }
 
diff --git a/src/test/postman/postman_collection.json b/src/test/postman/postman_collection.json
index 02cf802..8fb7f19 100644
--- a/src/test/postman/postman_collection.json
+++ b/src/test/postman/postman_collection.json
@@ -1046,8 +1046,8 @@
 							"console.log(\"RESPONSE:\");\r",
 							"console.log(responseBody);\r",
 							"\r",
-							"pm.test(\"Status code is 204\", function () {\r",
-							"    pm.response.to.have.status(204);\r",
+							"pm.test(\"Status code is 200\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
 							"});"
 						],
 						"type": "text/javascript"