diff --git a/flow-server/src/test/java/com/vaadin/flow/server/VaadinServiceDauTest.java b/flow-server/src/test/java/com/vaadin/flow/server/VaadinServiceDauTest.java
index 1a7bcaab451..f011794cc8a 100644
--- a/flow-server/src/test/java/com/vaadin/flow/server/VaadinServiceDauTest.java
+++ b/flow-server/src/test/java/com/vaadin/flow/server/VaadinServiceDauTest.java
@@ -10,14 +10,19 @@
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
 
 import com.vaadin.flow.di.Lookup;
 import com.vaadin.flow.server.dau.DAUCustomizer;
 import com.vaadin.flow.server.dau.DAUVaadinRequestInterceptor;
 import com.vaadin.flow.server.dau.UserIdentitySupplier;
 import com.vaadin.pro.licensechecker.LicenseException;
+import com.vaadin.pro.licensechecker.dau.DauIntegration;
 import com.vaadin.tests.util.MockDeploymentConfiguration;
 
+import static org.mockito.ArgumentMatchers.anyString;
+
 public class VaadinServiceDauTest {
 
     private static final Predicate<VaadinRequestInterceptor> IS_DAU_INTERCEPTOR = interceptor -> interceptor instanceof DAUVaadinRequestInterceptor
@@ -25,11 +30,13 @@ public class VaadinServiceDauTest {
                     && wrapper.delegate instanceof DAUVaadinRequestInterceptor);
 
     private String subscriptionKey;
+    private MockedStatic<DauIntegration> dauIntegrationMock;
 
     @Before
     public void setUp() throws Exception {
         subscriptionKey = System.getProperty("vaadin.subscriptionKey");
         System.setProperty("vaadin.subscriptionKey", "sub-1234");
+        dauIntegrationMock = Mockito.mockStatic(DauIntegration.class);
     }
 
     @After
@@ -39,6 +46,7 @@ public void tearDown() throws Exception {
         } else {
             System.clearProperty("vaadin.subscriptionKey");
         }
+        dauIntegrationMock.close();
     }
 
     @Test
@@ -50,6 +58,7 @@ public void init_developmentMode_dauNotEnabled() {
         MockVaadinServletService service = new MockVaadinServletService(config);
         Assert.assertTrue("Expecting DAU interceptor not to be installed",
                 vaadinInterceptors(service).noneMatch(IS_DAU_INTERCEPTOR));
+        dauIntegrationMock.verifyNoInteractions();
     }
 
     @Test
@@ -61,6 +70,7 @@ public void init_productionMode_notDauBuild_dauNotEnabled() {
         MockVaadinServletService service = new MockVaadinServletService(config);
         Assert.assertTrue("Expecting DAU interceptor not to be installed",
                 vaadinInterceptors(service).noneMatch(IS_DAU_INTERCEPTOR));
+        dauIntegrationMock.verifyNoInteractions();
     }
 
     @Test
@@ -72,10 +82,15 @@ public void init_productionMode_dauBuild_dauEnabled() {
         MockVaadinServletService service = new MockVaadinServletService(config);
         Assert.assertTrue("Expecting DAU interceptor to be installed",
                 vaadinInterceptors(service).anyMatch(IS_DAU_INTERCEPTOR));
+        dauIntegrationMock
+                .verify(() -> DauIntegration.startTracking(anyString()));
     }
 
     @Test
     public void init_productionMode_dauBuild_subscriptionKeyNotAvailable_throws() {
+        dauIntegrationMock.reset();
+        dauIntegrationMock.when(() -> DauIntegration.startTracking(anyString()))
+                .thenCallRealMethod();
         System.clearProperty("vaadin.subscriptionKey");
         MockDeploymentConfiguration config = new MockDeploymentConfiguration();
         config.setProductionMode(true);
diff --git a/flow-server/src/test/java/com/vaadin/flow/server/dau/DAUUtilsTest.java b/flow-server/src/test/java/com/vaadin/flow/server/dau/DAUUtilsTest.java
index b39a490f596..97bc029361f 100644
--- a/flow-server/src/test/java/com/vaadin/flow/server/dau/DAUUtilsTest.java
+++ b/flow-server/src/test/java/com/vaadin/flow/server/dau/DAUUtilsTest.java
@@ -2,6 +2,7 @@
 
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
+
 import java.util.HashMap;
 import java.util.Map;
 
@@ -123,51 +124,65 @@ public void trackUser_notUidlRequest_track() {
 
     @Test
     public void jsonEnforcementResponse_noDauCustomizer_defaultMessages() {
-        VaadinService service = VaadinServiceDauTest.vaadinServiceWithDau(null);
-        VaadinRequest request = Mockito.mock(VaadinRequest.class);
-        Mockito.when(request.getService()).thenReturn(service);
-        String response = DAUUtils.jsonEnforcementResponse(request,
-                new DauEnforcementException(new EnforcementException("STOP")));
-
-        // remove JSON wrap
-        response = response.replace("for(;;);[", "").replaceFirst("]$", "");
-        JsonObject json = Json.parse(response).getObject("meta")
-                .getObject("appError");
-
-        EnforcementNotificationMessages expectedMessages = EnforcementNotificationMessages.DEFAULT;
-        assertJsonErrorProperty("caption", expectedMessages.caption(), json);
-        assertJsonErrorProperty("message", expectedMessages.message(), json);
-        assertJsonErrorProperty("details", expectedMessages.details(), json);
-        assertJsonErrorProperty("url", expectedMessages.url(), json);
+        try (MockedStatic<DauIntegration> dauIntegrationMock = Mockito
+                .mockStatic(DauIntegration.class)) {
+            VaadinService service = VaadinServiceDauTest
+                    .vaadinServiceWithDau(null);
+            VaadinRequest request = Mockito.mock(VaadinRequest.class);
+            Mockito.when(request.getService()).thenReturn(service);
+            String response = DAUUtils.jsonEnforcementResponse(request,
+                    new DauEnforcementException(
+                            new EnforcementException("STOP")));
+
+            // remove JSON wrap
+            response = response.replace("for(;;);[", "").replaceFirst("]$", "");
+            JsonObject json = Json.parse(response).getObject("meta")
+                    .getObject("appError");
+
+            EnforcementNotificationMessages expectedMessages = EnforcementNotificationMessages.DEFAULT;
+            assertJsonErrorProperty("caption", expectedMessages.caption(),
+                    json);
+            assertJsonErrorProperty("message", expectedMessages.message(),
+                    json);
+            assertJsonErrorProperty("details", expectedMessages.details(),
+                    json);
+            assertJsonErrorProperty("url", expectedMessages.url(), json);
+        }
     }
 
     @Test
     public void jsonEnforcementResponse_customMessages() {
-        EnforcementNotificationMessages expectedMessages = new EnforcementNotificationMessages(
-                "caption", "message", "details", "url");
-        DAUCustomizer customizer = new DAUCustomizer() {
-            @Override
-            public EnforcementNotificationMessages getEnforcementNotificationMessages(
-                    SystemMessagesInfo systemMessagesInfo) {
-                return expectedMessages;
-            }
-        };
-        VaadinService service = VaadinServiceDauTest
-                .vaadinServiceWithDau(customizer);
-        VaadinRequest request = Mockito.mock(VaadinRequest.class);
-        Mockito.when(request.getService()).thenReturn(service);
-
-        String response = DAUUtils.jsonEnforcementResponse(request,
-                new DauEnforcementException(new EnforcementException("STOP")));
-        response = response.replace("for(;;);[", "").replaceFirst("]$", "");
-        JsonObject json = Json.parse(response).getObject("meta")
-                .getObject("appError");
-
-        assertJsonErrorProperty("caption", expectedMessages.caption(), json);
-        assertJsonErrorProperty("message", expectedMessages.message(), json);
-        assertJsonErrorProperty("details", expectedMessages.details(), json);
-        assertJsonErrorProperty("url", expectedMessages.url(), json);
-
+        try (MockedStatic<DauIntegration> dauIntegrationMock = Mockito
+                .mockStatic(DauIntegration.class)) {
+            EnforcementNotificationMessages expectedMessages = new EnforcementNotificationMessages(
+                    "caption", "message", "details", "url");
+            DAUCustomizer customizer = new DAUCustomizer() {
+                @Override
+                public EnforcementNotificationMessages getEnforcementNotificationMessages(
+                        SystemMessagesInfo systemMessagesInfo) {
+                    return expectedMessages;
+                }
+            };
+            VaadinService service = VaadinServiceDauTest
+                    .vaadinServiceWithDau(customizer);
+            VaadinRequest request = Mockito.mock(VaadinRequest.class);
+            Mockito.when(request.getService()).thenReturn(service);
+
+            String response = DAUUtils.jsonEnforcementResponse(request,
+                    new DauEnforcementException(
+                            new EnforcementException("STOP")));
+            response = response.replace("for(;;);[", "").replaceFirst("]$", "");
+            JsonObject json = Json.parse(response).getObject("meta")
+                    .getObject("appError");
+
+            assertJsonErrorProperty("caption", expectedMessages.caption(),
+                    json);
+            assertJsonErrorProperty("message", expectedMessages.message(),
+                    json);
+            assertJsonErrorProperty("details", expectedMessages.details(),
+                    json);
+            assertJsonErrorProperty("url", expectedMessages.url(), json);
+        }
     }
 
     @Test