diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java
index d5117d19aeb221..2aaa685754e6e5 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java
@@ -293,6 +293,10 @@ protected Policies getNamespacePolicies(NamespaceName namespaceName) {
             BundlesData bundleData = pulsar().getNamespaceService().getNamespaceBundleFactory()
                     .getBundles(namespaceName).getBundlesData();
             policies.bundles = bundleData != null ? bundleData : policies.bundles;
+            if (policies.is_allow_auto_update_schema == null) {
+                // the type changed from boolean to Boolean. return broker value here for keeping compatibility.
+                policies.is_allow_auto_update_schema = pulsar().getConfig().isAllowAutoUpdateSchemaEnabled();
+            }
 
             return policies;
         } catch (RestException re) {
@@ -517,20 +521,7 @@ protected void validateClusterExists(String cluster) {
     protected Policies getNamespacePolicies(String tenant, String cluster, String namespace) {
         NamespaceName ns = NamespaceName.get(tenant, cluster, namespace);
 
-        try {
-            Policies policies = namespaceResources().getPolicies(ns)
-                    .orElseThrow(() -> new RestException(Status.NOT_FOUND, "Namespace does not exist"));
-            // fetch bundles from LocalZK-policies
-            BundlesData bundleData  = pulsar().getNamespaceService().getNamespaceBundleFactory()
-                    .getBundles(ns).getBundlesData();
-            policies.bundles = bundleData != null ? bundleData : policies.bundles;
-            return policies;
-        } catch (RestException re) {
-            throw re;
-        } catch (Exception e) {
-            log.error("[{}] Failed to get namespace policies {}", clientAppId(), ns, e);
-            throw new RestException(e);
-        }
+        return getNamespacePolicies(ns);
     }
 
     protected boolean isNamespaceReplicated(NamespaceName namespaceName) {
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiTest.java
index 1266a49146e563..672bf968cd29ac 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiTest.java
@@ -736,6 +736,7 @@ public void namespaces() throws Exception {
         policies.bundles = PoliciesUtil.defaultBundle();
         policies.auth_policies.getNamespaceAuthentication().put("spiffe://developer/passport-role", EnumSet.allOf(AuthAction.class));
         policies.auth_policies.getNamespaceAuthentication().put("my-role", EnumSet.allOf(AuthAction.class));
+        policies.is_allow_auto_update_schema = conf.isAllowAutoUpdateSchemaEnabled();
 
         assertEquals(admin.namespaces().getPolicies("prop-xyz/ns1"), policies);
         assertEquals(admin.namespaces().getPermissions("prop-xyz/ns1"), policies.auth_policies.getNamespaceAuthentication());
@@ -746,6 +747,7 @@ public void namespaces() throws Exception {
         admin.namespaces().revokePermissionsOnNamespace("prop-xyz/ns1", "my-role");
         policies.auth_policies.getNamespaceAuthentication().remove("spiffe://developer/passport-role");
         policies.auth_policies.getNamespaceAuthentication().remove("my-role");
+        policies.is_allow_auto_update_schema = conf.isAllowAutoUpdateSchemaEnabled();
         assertEquals(admin.namespaces().getPolicies("prop-xyz/ns1"), policies);
 
         assertEquals(admin.namespaces().getPersistence("prop-xyz/ns1"), null);
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/v1/V1_AdminApiTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/v1/V1_AdminApiTest.java
index 19074338c1a270..c435d64ed29211 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/v1/V1_AdminApiTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/v1/V1_AdminApiTest.java
@@ -649,6 +649,7 @@ public void namespaces() throws Exception {
         Policies policies = new Policies();
         policies.bundles = PoliciesUtil.defaultBundle();
         policies.auth_policies.getNamespaceAuthentication().put("my-role", EnumSet.allOf(AuthAction.class));
+        policies.is_allow_auto_update_schema = conf.isAllowAutoUpdateSchemaEnabled();
 
         assertEquals(admin.namespaces().getPolicies("prop-xyz/use/ns1"), policies);
         assertEquals(admin.namespaces().getPermissions("prop-xyz/use/ns1"), policies.auth_policies.getNamespaceAuthentication());
@@ -657,6 +658,7 @@ public void namespaces() throws Exception {
 
         admin.namespaces().revokePermissionsOnNamespace("prop-xyz/use/ns1", "my-role");
         policies.auth_policies.getNamespaceAuthentication().remove("my-role");
+        policies.is_allow_auto_update_schema = conf.isAllowAutoUpdateSchemaEnabled();
         assertEquals(admin.namespaces().getPolicies("prop-xyz/use/ns1"), policies);
 
         assertNull(admin.namespaces().getPersistence("prop-xyz/use/ns1"));
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/schema/compatibility/SchemaCompatibilityCheckTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/schema/compatibility/SchemaCompatibilityCheckTest.java
index 5b12f37d400604..1b5e4d67232a7c 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/schema/compatibility/SchemaCompatibilityCheckTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/schema/compatibility/SchemaCompatibilityCheckTest.java
@@ -39,6 +39,7 @@
 import org.apache.pulsar.common.naming.TopicDomain;
 import org.apache.pulsar.common.naming.TopicName;
 import org.apache.pulsar.common.policies.data.ClusterData;
+import org.apache.pulsar.common.policies.data.Policies;
 import org.apache.pulsar.common.policies.data.SchemaCompatibilityStrategy;
 import org.apache.pulsar.common.policies.data.TenantInfo;
 import org.apache.pulsar.common.schema.SchemaInfo;
@@ -247,6 +248,7 @@ public void testBrokerAllowAutoUpdateSchemaDisabled(SchemaCompatibilityStrategy
 
 
         pulsar.getConfig().setAllowAutoUpdateSchemaEnabled(false);
+
         ProducerBuilder<Schemas.PersonTwo> producerThreeBuilder = pulsarClient
                 .newProducer(Schema.AVRO(SchemaDefinition.<Schemas.PersonTwo>builder().withAlwaysAllowNull
                                 (false).withSupportSchemaVersioning(true).
@@ -259,6 +261,9 @@ public void testBrokerAllowAutoUpdateSchemaDisabled(SchemaCompatibilityStrategy
         }
 
         pulsar.getConfig().setAllowAutoUpdateSchemaEnabled(true);
+        Policies policies = admin.namespaces().getPolicies(namespaceName.toString());
+        Assert.assertTrue(policies.is_allow_auto_update_schema);
+
         ConsumerBuilder<Schemas.PersonTwo> comsumerBuilder = pulsarClient.newConsumer(Schema.AVRO(
                         SchemaDefinition.<Schemas.PersonTwo>builder().withAlwaysAllowNull
                                         (false).withSupportSchemaVersioning(true).