diff --git a/src/main/scala/kafka/console/ClientQuotaConsole.scala b/src/main/scala/kafka/console/ClientQuotaConsole.scala
index bcd44cc..c24caac 100644
--- a/src/main/scala/kafka/console/ClientQuotaConsole.scala
+++ b/src/main/scala/kafka/console/ClientQuotaConsole.scala
@@ -1,13 +1,12 @@
 package kafka.console
 
 import com.xuxd.kafka.console.config.KafkaConfig
-import kafka.server.ConfigType
 import org.apache.kafka.clients.admin.{Admin, AlterClientQuotasOptions}
 import org.apache.kafka.common.quota.{ClientQuotaAlteration, ClientQuotaEntity, ClientQuotaFilter, ClientQuotaFilterComponent}
 
 import java.util.Collections
 import java.util.concurrent.TimeUnit
-import scala.jdk.CollectionConverters.{IterableHasAsJava, ListHasAsScala, SeqHasAsJava}
+import scala.jdk.CollectionConverters.{IterableHasAsJava, ListHasAsScala, MapHasAsScala, SeqHasAsJava}
 
 /**
  * client quota console.
@@ -26,40 +25,46 @@ class ClientQuotaConsole(config: KafkaConfig) extends KafkaConsole(config: Kafka
       })
   }.asInstanceOf[java.util.Map[ClientQuotaEntity, java.util.Map[String, Double]]]
 
+  def addQuotaConfigs(entityTypes: java.util.List[String], entityNames: java.util.List[String], configsToBeAddedMap: java.util.Map[String, String]): (Boolean, String) = {
+    alterQuotaConfigs(entityTypes, entityNames, configsToBeAddedMap, Collections.emptyList())
+  }
+
+  def deleteQuotaConfigs(entityTypes: java.util.List[String], entityNames: java.util.List[String], configsToBeDeleted: java.util.List[String]): (Boolean, String) = {
+    alterQuotaConfigs(entityTypes, entityNames, Collections.emptyMap(), configsToBeDeleted)
+  }
+
+  def alterQuotaConfigs(entityTypes: java.util.List[String], entityNames: java.util.List[String], configsToBeAddedMap: java.util.Map[String, String], configsToBeDeleted: java.util.List[String]): (Boolean, String) = {
+    withAdminClientAndCatchError(admin => alterQuotaConfigsInner(admin, entityTypes.asScala.toList, entityNames.asScala.toList, configsToBeAddedMap.asScala.toMap, configsToBeDeleted.asScala.toSeq),
+      e => {
+        log.error("getAllClientQuotasConfigs error.", e)
+        (false, e.getMessage)
+      })
+    (true, "")
+  }
+
   private def getAllClientQuotasConfigs(adminClient: Admin, entityTypes: List[String], entityNames: List[String]): java.util.Map[ClientQuotaEntity, java.util.Map[String, Double]] = {
-    val components = entityTypes.map(Some(_)).zipAll(entityNames.map(Some(_)), None, None).map { case (entityTypeOpt, entityNameOpt) =>
-      val entityType = entityTypeOpt match {
-        case Some(ConfigType.User) => ClientQuotaEntity.USER
-        case Some(ConfigType.Client) => ClientQuotaEntity.CLIENT_ID
-        case Some(ConfigType.Ip) => ClientQuotaEntity.IP
-        case Some(_) => throw new IllegalArgumentException(s"Unexpected entity type ${entityTypeOpt.get}")
-        case None => throw new IllegalArgumentException("More entity names specified than entity types")
-      }
+    val components = entityTypes.map(Some(_)).zipAll(entityNames.map(Some(_)), None, None).map { case (entityType, entityNameOpt) =>
       entityNameOpt match {
-        case Some("") => ClientQuotaFilterComponent.ofDefaultEntity(entityType)
-        case Some(name) => ClientQuotaFilterComponent.ofEntity(entityType, name)
-        case None => ClientQuotaFilterComponent.ofEntityType(entityType)
+        case Some("") => ClientQuotaFilterComponent.ofDefaultEntity(entityType.get)
+        case Some(name) => ClientQuotaFilterComponent.ofEntity(entityType.get, name)
+        case None => ClientQuotaFilterComponent.ofEntityType(entityType.get)
       }
     }
 
     adminClient.describeClientQuotas(ClientQuotaFilter.containsOnly(components.asJava)).entities.get(30, TimeUnit.SECONDS)
   }.asInstanceOf[java.util.Map[ClientQuotaEntity, java.util.Map[String, Double]]]
 
-  private def alterQuotaConfigs(adminClient: Admin, entityTypes: List[String], entityNames: List[String], configsToBeAddedMap: Map[String, String], configsToBeDeleted: Seq[String]) = {
+  private def alterQuotaConfigsInner(adminClient: Admin, entityTypes: List[String], entityNames: List[String], configsToBeAddedMap: Map[String, String], configsToBeDeleted: Seq[String]) = {
     // handle altering client/user quota configs
-    val oldConfig = getAllClientQuotasConfigs(adminClient, entityTypes, entityNames)
+    //    val oldConfig = getAllClientQuotasConfigs(adminClient, entityTypes, entityNames)
+    //    val invalidConfigs = configsToBeDeleted.filterNot(oldConfig.asScala.toMap.contains)
+    //    if (invalidConfigs.nonEmpty)
+    //      throw new InvalidConfigurationException(s"Invalid config(s): ${invalidConfigs.mkString(",")}")
 
-    val alterEntityTypes = entityTypes.map {
-      case ConfigType.User => ClientQuotaEntity.USER
-      case ConfigType.Client => ClientQuotaEntity.CLIENT_ID
-      case ConfigType.Ip => ClientQuotaEntity.IP
-      case entType => throw new IllegalArgumentException(s"Unexpected entity type: $entType")
-    }
     val alterEntityNames = entityNames.map(en => if (en.nonEmpty) en else null)
-
     // Explicitly populate a HashMap to ensure nulls are recorded properly.
     val alterEntityMap = new java.util.HashMap[String, String]
-    alterEntityTypes.zip(alterEntityNames).foreach { case (k, v) => alterEntityMap.put(k, v) }
+    entityTypes.zip(alterEntityNames).foreach { case (k, v) => alterEntityMap.put(k, v) }
     val entity = new ClientQuotaEntity(alterEntityMap)
 
     val alterOptions = new AlterClientQuotasOptions().validateOnly(false)
diff --git a/src/test/java/com/xuxd/kafka/console/scala/ClientQuotaConsoleTest.java b/src/test/java/com/xuxd/kafka/console/scala/ClientQuotaConsoleTest.java
index 735e8d7..32850c2 100644
--- a/src/test/java/com/xuxd/kafka/console/scala/ClientQuotaConsoleTest.java
+++ b/src/test/java/com/xuxd/kafka/console/scala/ClientQuotaConsoleTest.java
@@ -4,25 +4,40 @@ import com.xuxd.kafka.console.config.ContextConfig;
 import com.xuxd.kafka.console.config.ContextConfigHolder;
 import com.xuxd.kafka.console.config.KafkaConfig;
 import kafka.console.ClientQuotaConsole;
-import kafka.server.ConfigType;
+import org.apache.kafka.common.config.internals.QuotaConfigs;
 import org.apache.kafka.common.quota.ClientQuotaEntity;
 import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.Map;
 
 public class ClientQuotaConsoleTest {
 
+    String bootstrapServer = "127.0.0.1:9092";
+
     @Test
     void testGetClientQuotasConfigs() {
         ClientQuotaConsole console = new ClientQuotaConsole(new KafkaConfig());
         ContextConfig config = new ContextConfig();
-        config.setBootstrapServer("127.0.0.1:9092");
+        config.setBootstrapServer(bootstrapServer);
         ContextConfigHolder.CONTEXT_CONFIG.set(config);
-        Map<ClientQuotaEntity, Map<String, Object>> configs = console.getClientQuotasConfigs(Arrays.asList(ConfigType.User()), Arrays.asList());
+        Map<ClientQuotaEntity, Map<String, Object>> configs = console.getClientQuotasConfigs(Arrays.asList(ClientQuotaEntity.USER), Arrays.asList());
         configs.forEach((k, v) -> {
             System.out.println(k);
             System.out.println(v);
         });
     }
+
+    @Test
+    void testAlterClientQuotasConfigs() {
+        ClientQuotaConsole console = new ClientQuotaConsole(new KafkaConfig());
+        ContextConfig config = new ContextConfig();
+        config.setBootstrapServer(bootstrapServer);
+        ContextConfigHolder.CONTEXT_CONFIG.set(config);
+        Map<String, String> configsToBeAddedMap = new HashMap<>();
+        configsToBeAddedMap.put(QuotaConfigs.PRODUCER_BYTE_RATE_OVERRIDE_CONFIG, "102400");
+
+        console.addQuotaConfigs(Arrays.asList(ClientQuotaEntity.USER), Arrays.asList("user-test"), configsToBeAddedMap);
+    }
 }