diff --git a/notification-core/src/main/java/org/opengroup/osdu/notification/api/PubsubEndpoint.java b/notification-core/src/main/java/org/opengroup/osdu/notification/api/PubsubEndpoint.java
index 667634044b99bbd02562afff97a2dd1457eef787..558bc04803803178ebd15cd7afa30334c3f62c1d 100644
--- a/notification-core/src/main/java/org/opengroup/osdu/notification/api/PubsubEndpoint.java
+++ b/notification-core/src/main/java/org/opengroup/osdu/notification/api/PubsubEndpoint.java
@@ -55,7 +55,7 @@ public class PubsubEndpoint {
         HttpResponse response = notificationHandler.notifySubscriber(notificationId, pubsubMessage, headerAttributes);
         if (!response.isSuccessCode()) {
             this.log.error(NOT_ACKNOWLEDGE);
-            return new ResponseEntity<String>(NOT_ACKNOWLEDGE, HttpStatus.INTERNAL_SERVER_ERROR);
+            return new ResponseEntity<String>(NOT_ACKNOWLEDGE, HttpStatus.valueOf(response.getResponseCode()));
         }
         this.log.info(ACKNOWLEDGE);
         return new ResponseEntity<String>(ACKNOWLEDGE, HttpStatus.OK);
diff --git a/notification-core/src/main/java/org/opengroup/osdu/notification/auth/GsaAuth.java b/notification-core/src/main/java/org/opengroup/osdu/notification/auth/GsaAuth.java
index 0cd7c7c51c0d3c51381c5795502a67e320c36917..38618efa2739d17c3ce1825c2b92fe797ba740e8 100644
--- a/notification-core/src/main/java/org/opengroup/osdu/notification/auth/GsaAuth.java
+++ b/notification-core/src/main/java/org/opengroup/osdu/notification/auth/GsaAuth.java
@@ -35,22 +35,18 @@ public class GsaAuth implements SecretAuth {
 
     private GsaSecret gsaSecret;
 
-    @Override
     public void setSecret(Secret secret) {
         this.gsaSecret = (GsaSecret) secret;
     }
 
-    @Override
     public Secret getSecret() {
         return this.gsaSecret;
     }
 
-    @Override
     public String getPushUrl(String endpoint) throws Exception {
         return endpoint;
     }
 
-    @Override
     public Map<String, String> getRequestHeaders() {
         Map<String, String> requestHeader = new HashMap<>();
         if (gsaSecret != null) {
diff --git a/notification-core/src/main/java/org/opengroup/osdu/notification/auth/HmacAuth.java b/notification-core/src/main/java/org/opengroup/osdu/notification/auth/HmacAuth.java
index 0973b14debafc93a0cb2debc8746110487d849c8..6eeaf1eda9f38c70ab31437d5197204345ccb9e0 100644
--- a/notification-core/src/main/java/org/opengroup/osdu/notification/auth/HmacAuth.java
+++ b/notification-core/src/main/java/org/opengroup/osdu/notification/auth/HmacAuth.java
@@ -32,17 +32,14 @@ public class HmacAuth implements SecretAuth {
 
     private HmacSecret hmacSecret;
 
-    @Override
     public void setSecret(Secret secret) {
         this.hmacSecret = (HmacSecret) secret;
     }
 
-    @Override
     public Secret getSecret() {
         return this.hmacSecret;
     }
 
-    @Override
     public String getPushUrl(String endpoint) throws Exception {
         String pushUrl = endpoint;
         try {
@@ -54,7 +51,6 @@ public class HmacAuth implements SecretAuth {
         return pushUrl;
     }
 
-    @Override
     public Map<String, String> getRequestHeaders() {
         Map<String, String> requestHeader = new HashMap<>();
         return requestHeader;
diff --git a/notification-core/src/main/java/org/opengroup/osdu/notification/service/NotificationHandler.java b/notification-core/src/main/java/org/opengroup/osdu/notification/service/NotificationHandler.java
index ed8ff039b53be33f59495623bc314ae25fa547ea..124af890e00463f91aeee1d04706b1c351c50bcc 100644
--- a/notification-core/src/main/java/org/opengroup/osdu/notification/service/NotificationHandler.java
+++ b/notification-core/src/main/java/org/opengroup/osdu/notification/service/NotificationHandler.java
@@ -41,7 +41,7 @@ public class NotificationHandler {
     private SubscriptionHandler subscriptionHandler;
     @Autowired
     private AuthFactory authFactory;
-    @Value("${app.expireTime:30000}")
+    @Value("${app.waitingTime:30000}")
     private int WAITING_TIME ;
 
     public HttpResponse notifySubscriber(String notificationId, String pubsubMessage, Map<String, String> headerAttributes) throws Exception {