diff --git a/src/test/java/it/gov/pagopa/receipt/pdf/helpdesk/ReceiptToReviewedTest.java b/src/test/java/it/gov/pagopa/receipt/pdf/helpdesk/ReceiptToReviewedTest.java
index 5d97c08..f51e66c 100644
--- a/src/test/java/it/gov/pagopa/receipt/pdf/helpdesk/ReceiptToReviewedTest.java
+++ b/src/test/java/it/gov/pagopa/receipt/pdf/helpdesk/ReceiptToReviewedTest.java
@@ -1,10 +1,6 @@
 package it.gov.pagopa.receipt.pdf.helpdesk;
 
-import com.azure.cosmos.models.FeedResponse;
-import com.microsoft.azure.functions.HttpRequestMessage;
-import com.microsoft.azure.functions.HttpResponseMessage;
-import com.microsoft.azure.functions.HttpStatus;
-import com.microsoft.azure.functions.OutputBinding;
+import com.microsoft.azure.functions.*;
 import it.gov.pagopa.receipt.pdf.helpdesk.client.ReceiptCosmosClient;
 import it.gov.pagopa.receipt.pdf.helpdesk.entity.receipt.ReceiptError;
 import it.gov.pagopa.receipt.pdf.helpdesk.entity.receipt.enumeration.ReceiptErrorStatusType;
@@ -19,8 +15,6 @@
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.mockito.stubbing.Answer;
 
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -32,22 +26,19 @@
 class ReceiptToReviewedTest {
 
     private static final String BIZ_EVENT_ID = "valid_biz_event_id";
-
+    private final ExecutionContext executionContextMock = mock(ExecutionContext.class);
     private ReceiptToReviewed function;
-
     @Mock
     private ReceiptCosmosClient receiptCosmosClient;
-
     @Captor
-    private ArgumentCaptor<List<ReceiptError>> receiptErrorCaptor;
+    private ArgumentCaptor<ReceiptError> receiptErrorCaptor;
+    @Mock
+    HttpRequestMessage<Optional<String>> request;
+    @SuppressWarnings("unchecked")
+    OutputBinding<ReceiptError> documentdb = (OutputBinding<ReceiptError>) spy(OutputBinding.class);
 
     @Test
     void requestWithValidBizEventSaveReceiptErrorInReviewed() throws ReceiptNotFoundException {
-        ReceiptToReviewedRequest receiptToReviewedRequest = new ReceiptToReviewedRequest();
-        receiptToReviewedRequest.setEventId(BIZ_EVENT_ID);
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(receiptToReviewedRequest));
-
         doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
             HttpStatus status = (HttpStatus) invocation.getArguments()[0];
             return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
@@ -59,128 +50,21 @@ void requestWithValidBizEventSaveReceiptErrorInReviewed() throws ReceiptNotFound
                 .build();
         when(receiptCosmosClient.getReceiptError(BIZ_EVENT_ID)).thenReturn(receiptError);
 
-
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
+        function =  spy(new ReceiptToReviewed(receiptCosmosClient));
 
         // test execution
         AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
+        assertDoesNotThrow(() -> responseMessage.set(function.run(request, BIZ_EVENT_ID, documentdb,executionContextMock )));
         assertEquals(HttpStatus.OK, responseMessage.get().getStatus());
 
         verify(documentdb).setValue(receiptErrorCaptor.capture());
-        ReceiptError captured = receiptErrorCaptor.getValue().get(0);
+        ReceiptError captured = receiptErrorCaptor.getValue();
         assertEquals(BIZ_EVENT_ID, captured.getBizEventId());
         assertEquals(ReceiptErrorStatusType.REVIEWED, captured.getStatus());
     }
 
-    @Test
-    void requestWithoutBizEventIdSaveMultipleReceiptErrorInReviewed() {
-        ReceiptToReviewedRequest receiptToReviewedRequest = new ReceiptToReviewedRequest();
-        receiptToReviewedRequest.setEventId(null);
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(receiptToReviewedRequest));
-
-        doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
-            HttpStatus status = (HttpStatus) invocation.getArguments()[0];
-            return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
-        }).when(request).createResponseBuilder(any(HttpStatus.class));
-
-
-        FeedResponse<ReceiptError> feedResponse = mock(FeedResponse.class);
-
-        ReceiptError receiptError1 = ReceiptError.builder()
-                .bizEventId("1")
-                .status(ReceiptErrorStatusType.TO_REVIEW)
-                .build();
-        ReceiptError receiptError2 = ReceiptError.builder()
-                .bizEventId("2")
-                .status(ReceiptErrorStatusType.TO_REVIEW)
-                .build();
-        List<ReceiptError> listReceipt = List.of(receiptError1, receiptError2);
-        when(feedResponse.getResults()).thenReturn(listReceipt);
-        Iterable<FeedResponse<ReceiptError>> feedResponseIterator = List.of(feedResponse);
-
-        when(receiptCosmosClient.getToReviewReceiptsError(any(), anyInt())).thenReturn(feedResponseIterator);
-
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
-
-        // test execution
-        AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
-        assertEquals(HttpStatus.OK, responseMessage.get().getStatus());
-
-        verify(documentdb).setValue(receiptErrorCaptor.capture());
-
-        ReceiptError captured1 = receiptErrorCaptor.getValue().get(0);
-        assertEquals("1", captured1.getBizEventId());
-        assertEquals(ReceiptErrorStatusType.REVIEWED, captured1.getStatus());
-
-        ReceiptError captured2 = receiptErrorCaptor.getValue().get(1);
-        assertEquals("2", captured2.getBizEventId());
-        assertEquals(ReceiptErrorStatusType.REVIEWED, captured2.getStatus());
-    }
-
-    @Test
-    void requestWithoutRequestBodySaveMultipleReceiptErrorInReviewed() {
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(new ReceiptToReviewedRequest()));
-
-        doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
-            HttpStatus status = (HttpStatus) invocation.getArguments()[0];
-            return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
-        }).when(request).createResponseBuilder(any(HttpStatus.class));
-
-
-        FeedResponse<ReceiptError> feedResponse = mock(FeedResponse.class);
-
-        ReceiptError receiptError1 = ReceiptError.builder()
-                .bizEventId("1")
-                .status(ReceiptErrorStatusType.TO_REVIEW)
-                .build();
-        ReceiptError receiptError2 = ReceiptError.builder()
-                .bizEventId("2")
-                .status(ReceiptErrorStatusType.TO_REVIEW)
-                .build();
-        List<ReceiptError> listReceipt = List.of(receiptError1, receiptError2);
-        when(feedResponse.getResults()).thenReturn(listReceipt);
-        Iterable<FeedResponse<ReceiptError>> feedResponseIterator = List.of(feedResponse);
-
-        when(receiptCosmosClient.getToReviewReceiptsError(any(), anyInt())).thenReturn(feedResponseIterator);
-
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
-
-        // test execution
-        AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
-        assertEquals(HttpStatus.OK, responseMessage.get().getStatus());
-
-        verify(documentdb).setValue(receiptErrorCaptor.capture());
-
-        ReceiptError captured1 = receiptErrorCaptor.getValue().get(0);
-        assertEquals("1", captured1.getBizEventId());
-        assertEquals(ReceiptErrorStatusType.REVIEWED, captured1.getStatus());
-
-        ReceiptError captured2 = receiptErrorCaptor.getValue().get(1);
-        assertEquals("2", captured2.getBizEventId());
-        assertEquals(ReceiptErrorStatusType.REVIEWED, captured2.getStatus());
-    }
-
     @Test
     void requestWithValidBizEventIdButReceiptNotFound() throws ReceiptNotFoundException {
-        ReceiptToReviewedRequest receiptToReviewedRequest = new ReceiptToReviewedRequest();
-        receiptToReviewedRequest.setEventId(BIZ_EVENT_ID);
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(receiptToReviewedRequest));
-
         doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
             HttpStatus status = (HttpStatus) invocation.getArguments()[0];
             return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
@@ -188,26 +72,18 @@ void requestWithValidBizEventIdButReceiptNotFound() throws ReceiptNotFoundExcept
 
         when(receiptCosmosClient.getReceiptError(BIZ_EVENT_ID)).thenThrow(ReceiptNotFoundException.class);
 
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
+        function = spy(new ReceiptToReviewed(receiptCosmosClient));
 
         // test execution
         AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
+        assertDoesNotThrow(() -> responseMessage.set(function.run(request, BIZ_EVENT_ID, documentdb, executionContextMock)));
         assertEquals(HttpStatus.NOT_FOUND, responseMessage.get().getStatus());
 
         verifyNoInteractions(documentdb);
     }
 
     @Test
-    void requestWithValidBizEventIdButReceiptWrongStatus() throws ReceiptNotFoundException {
-        ReceiptToReviewedRequest receiptToReviewedRequest = new ReceiptToReviewedRequest();
-        receiptToReviewedRequest.setEventId(BIZ_EVENT_ID);
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(receiptToReviewedRequest));
-
+    void requestWithValidBizEventIdButReceiptWrongStatusReturnsInternalServerError() throws ReceiptNotFoundException {
         doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
             HttpStatus status = (HttpStatus) invocation.getArguments()[0];
             return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
@@ -218,47 +94,29 @@ void requestWithValidBizEventIdButReceiptWrongStatus() throws ReceiptNotFoundExc
                 .status(ReceiptErrorStatusType.REQUEUED)
                 .build());
 
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
+        function = spy(new ReceiptToReviewed(receiptCosmosClient));
 
         // test execution
         AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
-        assertEquals(HttpStatus.BAD_REQUEST, responseMessage.get().getStatus());
+        assertDoesNotThrow(() -> responseMessage.set(function.run(request, BIZ_EVENT_ID, documentdb, executionContextMock)));
+        assertEquals(HttpStatus.INTERNAL_SERVER_ERROR, responseMessage.get().getStatus());
 
         verifyNoInteractions(documentdb);
     }
 
     @Test
-    void requestWithoutRequestBodyDoesNotFindAnyReceiptError() {
-        HttpRequestMessage<Optional<ReceiptToReviewedRequest>> request = mock(HttpRequestMessage.class);
-        when(request.getBody()).thenReturn(Optional.of(new ReceiptToReviewedRequest()));
-
+    void requestWithoutEventIdReturnsBadRequest() {
         doAnswer((Answer<HttpResponseMessage.Builder>) invocation -> {
             HttpStatus status = (HttpStatus) invocation.getArguments()[0];
             return new HttpResponseMessageMock.HttpResponseMessageBuilderMock().status(status);
         }).when(request).createResponseBuilder(any(HttpStatus.class));
 
-
-        FeedResponse<ReceiptError> feedResponse = mock(FeedResponse.class);
-
-        List<ReceiptError> listReceipt = new ArrayList<>();
-        when(feedResponse.getResults()).thenReturn(listReceipt);
-        Iterable<FeedResponse<ReceiptError>> feedResponseIterator = List.of(feedResponse);
-
-        when(receiptCosmosClient.getToReviewReceiptsError(any(), anyInt())).thenReturn(feedResponseIterator);
-
-        function = new ReceiptToReviewed(receiptCosmosClient);
-
-        @SuppressWarnings("unchecked")
-        OutputBinding<List<ReceiptError>> documentdb = (OutputBinding<List<ReceiptError>>) spy(OutputBinding.class);
+        function = spy(new ReceiptToReviewed(receiptCosmosClient));
 
         // test execution
         AtomicReference<HttpResponseMessage> responseMessage = new AtomicReference<>();
-        assertDoesNotThrow(() -> responseMessage.set(function.run(request, documentdb)));
-        assertEquals(HttpStatus.OK, responseMessage.get().getStatus());
+        assertDoesNotThrow(() -> responseMessage.set(function.run(request, null, documentdb, executionContextMock)));
+        assertEquals(HttpStatus.BAD_REQUEST, responseMessage.get().getStatus());
 
         verifyNoInteractions(documentdb);
     }