diff --git a/basyx.components/basyx.components.docker/basyx.components.AASServer/src/test/java/org/eclipse/basyx/regression/AASServer/mongodb/TestMongoDBAggregator.java b/basyx.components/basyx.components.docker/basyx.components.AASServer/src/test/java/org/eclipse/basyx/regression/AASServer/mongodb/TestMongoDBAggregator.java
index 380a0db0..3f257af9 100644
--- a/basyx.components/basyx.components.docker/basyx.components.AASServer/src/test/java/org/eclipse/basyx/regression/AASServer/mongodb/TestMongoDBAggregator.java
+++ b/basyx.components/basyx.components.docker/basyx.components.AASServer/src/test/java/org/eclipse/basyx/regression/AASServer/mongodb/TestMongoDBAggregator.java
@@ -25,6 +25,10 @@
 package org.eclipse.basyx.regression.AASServer.mongodb;
 
 import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
 
 import java.io.IOException;
 import java.util.List;
@@ -43,10 +47,18 @@
 import org.eclipse.basyx.components.aas.AASServerComponent;
 import org.eclipse.basyx.components.aas.configuration.AASServerBackend;
 import org.eclipse.basyx.components.aas.configuration.BaSyxAASServerConfiguration;
+import org.eclipse.basyx.components.aas.mongodb.MongoDBAASAPIFactory;
 import org.eclipse.basyx.components.aas.mongodb.MongoDBAASAggregator;
+import org.eclipse.basyx.components.aas.mongodb.MongoDBAASAggregatorFactory;
+import org.eclipse.basyx.components.aas.mongodb.MongoDBSubmodelAPIFactory;
+import org.eclipse.basyx.components.aas.mongodb.MongoDBSubmodelAggregatorFactory;
 import org.eclipse.basyx.components.configuration.BaSyxContextConfiguration;
 import org.eclipse.basyx.components.configuration.BaSyxMongoDBConfiguration;
 import org.eclipse.basyx.components.registry.mongodb.MongoDBRegistryHandler;
+import org.eclipse.basyx.submodel.aggregator.api.ISubmodelAggregator;
+import org.eclipse.basyx.submodel.aggregator.api.ISubmodelAggregatorFactory;
+import org.eclipse.basyx.submodel.aggregator.observing.ISubmodelAggregatorObserverV2;
+import org.eclipse.basyx.submodel.aggregator.observing.ObservableSubmodelAggregatorV2;
 import org.eclipse.basyx.submodel.metamodel.api.ISubmodel;
 import org.eclipse.basyx.submodel.metamodel.api.identifier.IIdentifier;
 import org.eclipse.basyx.submodel.metamodel.api.identifier.IdentifierType;
@@ -66,7 +78,6 @@
 
 import com.mongodb.client.MongoClient;
 import com.mongodb.client.MongoClients;
-
 /**
  * Testing various behaviors of MongoDBAASAggregator Using
  * MongoDBAASAggregator's constructors to set registry and adding AAS and
@@ -279,6 +290,28 @@ public void checkNoExceptionIsObservedAfterPassingRegistry() {
 		assertEquals(SM_IDSHORT, submodelObject.get(Referable.IDSHORT));
 	}
 
+	@Test
+	public void observerIsNotTriggered_WhenGettingAAS() {
+		MongoClient client = MongoClients.create(mongoDBConfig.getConnectionUrl());
+
+		MongoDBSubmodelAggregatorFactory aggregatorFactory = new MongoDBSubmodelAggregatorFactory(mongoDBConfig, new MongoDBSubmodelAPIFactory(mongoDBConfig, client), client);
+		
+		MockObservableSubmodelAggregatorV2Factory observableAggregatorFactory = new MockObservableSubmodelAggregatorV2Factory(aggregatorFactory, "aas-server");
+		
+		MongoDBAASAggregatorFactory aasAggregatorFactory = new MongoDBAASAggregatorFactory(mongoDBConfig, registry, new MongoDBAASAPIFactory(mongoDBConfig, client), observableAggregatorFactory, client);
+
+		IAASAggregator aggregator = aasAggregatorFactory.create();
+		
+		// When
+		restartAasServer();
+		aggregator.getAAS(registry.lookupAAS(new ModelUrn(AAS_ID)).getIdentifier());
+		
+		// Expects
+		ISubmodelAggregatorObserverV2 observer = observableAggregatorFactory.getMockObserver();
+		verify(observer, never()).submodelCreated(any(), any(), any());
+
+	}
+
 	private void restartAasServer() {
 		component.stopComponent();
 		component.startComponent();
@@ -301,4 +334,38 @@ public static void tearDownClass() {
 
 		component.stopComponent();
 	}
+
+
+	private class MockObservableSubmodelAggregatorV2Factory implements ISubmodelAggregatorFactory {
+
+		private final ISubmodelAggregatorFactory smAggregatorFactory;
+
+		private final String aasServerId;
+
+		private ISubmodelAggregatorObserverV2 mockObserver;
+
+		public MockObservableSubmodelAggregatorV2Factory(ISubmodelAggregatorFactory smAggregatorFactory, String aasServerId) {
+			this.smAggregatorFactory = smAggregatorFactory;
+			this.aasServerId = aasServerId;
+			mockObserver = mock(ISubmodelAggregatorObserverV2.class);
+		}
+
+		@Override
+		public ISubmodelAggregator create() {
+			ObservableSubmodelAggregatorV2 smAggregator = new ObservableSubmodelAggregatorV2(smAggregatorFactory.create(), aasServerId);
+			smAggregator.addObserver(mockObserver);
+			return smAggregator;
+		}
+
+		@Override
+		public ISubmodelAggregator create(IIdentifier aasIdentifier) {
+			return create();
+		}
+
+		public ISubmodelAggregatorObserverV2 getMockObserver() {
+			return mockObserver;
+		}
+
+	}
+
 }
diff --git a/basyx.components/pom.xml b/basyx.components/pom.xml
index 059ab2c7..95dd7036 100644
--- a/basyx.components/pom.xml
+++ b/basyx.components/pom.xml
@@ -262,8 +262,14 @@
 			<version>4.13.2</version>
 			<scope>test</scope>
 		</dependency>
+		<!-- Mockito for mocking in JUnit tests -->
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-core</artifactId>
+			<version>5.5.0</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
-
 	<!-- Specifies dependency settings for all submodules using these dependencies -->
 	<dependencyManagement>
 		<dependencies>