diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java
index d18e154f3795c..9e04dd9ccdeac 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/ServerCnx.java
@@ -967,6 +967,9 @@ protected void handleSubscribe(final CommandSubscribe subscribe) {
         final KeySharedMeta keySharedMeta = subscribe.hasKeySharedMeta()
               ? new KeySharedMeta().copyFrom(subscribe.getKeySharedMeta())
               : emptyKeySharedMeta;
+        final long consumerEpoch = subscribe.hasConsumerEpoch() ? subscribe.getConsumerEpoch() : DEFAULT_CONSUMER_EPOCH;
+        final Optional<Map<String, String>> subscriptionProperties = SubscriptionOption.getPropertiesMap(
+                subscribe.getSubscriptionPropertiesList());
 
         CompletableFuture<Boolean> isAuthorizedFuture = isTopicOperationAllowed(
                 topicName,
@@ -1029,14 +1032,6 @@ protected void handleSubscribe(final CommandSubscribe subscribe) {
                 boolean createTopicIfDoesNotExist = forceTopicCreation
                         && service.isAllowAutoTopicCreation(topicName.toString());
 
-                final long consumerEpoch;
-                if (subscribe.hasConsumerEpoch()) {
-                    consumerEpoch = subscribe.getConsumerEpoch();
-                } else {
-                    consumerEpoch = DEFAULT_CONSUMER_EPOCH;
-                }
-                Optional<Map<String, String>> subscriptionProperties = SubscriptionOption.getPropertiesMap(
-                        subscribe.getSubscriptionPropertiesList());
                 service.getTopic(topicName.toString(), createTopicIfDoesNotExist)
                         .thenCompose(optTopic -> {
                             if (!optTopic.isPresent()) {
@@ -1552,6 +1547,7 @@ protected void handleAck(CommandAck ack) {
         final boolean hasRequestId = ack.hasRequestId();
         final long requestId = hasRequestId ? ack.getRequestId() : 0;
         final long consumerId = ack.getConsumerId();
+        final CommandAck finalAck = getBrokerService().getInterceptor() != null ? new CommandAck().copyFrom(ack) : null;
 
         if (consumerFuture != null && consumerFuture.isDone() && !consumerFuture.isCompletedExceptionally()) {
             Consumer consumer = consumerFuture.getNow(null);
@@ -1561,7 +1557,7 @@ protected void handleAck(CommandAck ack) {
                                     requestId, null, null, consumerId));
                         }
                         if (getBrokerService().getInterceptor() != null) {
-                            getBrokerService().getInterceptor().messageAcked(this, consumer, ack);
+                            getBrokerService().getInterceptor().messageAcked(this, consumer, finalAck);
                         }
                     }).exceptionally(e -> {
                         if (hasRequestId) {