diff --git a/webapp/src/main/java/org/gcube/resourcemanagement/manager/webapp/context/CreateRequest.java b/webapp/src/main/java/org/gcube/resourcemanagement/manager/webapp/context/CreateRequest.java
index 8e0573b..6232980 100644
--- a/webapp/src/main/java/org/gcube/resourcemanagement/manager/webapp/context/CreateRequest.java
+++ b/webapp/src/main/java/org/gcube/resourcemanagement/manager/webapp/context/CreateRequest.java
@@ -5,6 +5,7 @@ import java.util.Objects;
 import org.gcube.informationsystem.model.entity.Context;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextAlreadyPresentException;
+import org.gcube.resourcemanagement.manager.io.codeexceptions.LocalCodeException;
 import org.gcube.resourcemanagement.manager.io.codeexceptions.WebCodeException;
 import org.gcube.resourcemanagement.manager.io.rs.RMCreateContextCode;
 
@@ -31,12 +32,13 @@ public final class CreateRequest extends RequestToResourceRegistry {
 	 * @see org.gcube.resourcemanagement.manager.webapp.context.RequestToResourceRegistry#validate()
 	 */
 	@Override
-	public CreateRequest validate() throws Exception {
-		//TODO: to implement 
+	public void validate() throws LocalCodeException {
 		if (Objects.nonNull(this.context.getParent())) {
-			throw new Exception("Unable to manage a context with parent.");
+			Context parent = new Queries().fetchContext(this.context.getParent().getHeader().getUUID(), this.getContextClient());
+			if (Objects.isNull(parent)) {
+				throw new LocalCodeException(RMCreateContextCode.CONTEXT_PARENT_DOES_NOT_EXIST);
+			}
 		}
-		return this;
 	}
 
 	/* (non-Javadoc)
@@ -45,7 +47,7 @@ public final class CreateRequest extends RequestToResourceRegistry {
 	@Override
 	protected ResponseFromResourceRegistry send() {
 		try {
-			Context created = resourceRegistryContextClient.create(context);
+			Context created = this.getContextClient().create(context);
 			if (Objects.nonNull(created)) {
 				
 			} else {