diff --git a/addons/koji/common/src/main/java/org/commonjava/indy/koji/content/KojiContentManagerDecorator.java b/addons/koji/common/src/main/java/org/commonjava/indy/koji/content/KojiContentManagerDecorator.java
index df4d29f638..a66807c6ae 100644
--- a/addons/koji/common/src/main/java/org/commonjava/indy/koji/content/KojiContentManagerDecorator.java
+++ b/addons/koji/common/src/main/java/org/commonjava/indy/koji/content/KojiContentManagerDecorator.java
@@ -566,13 +566,13 @@ private Group adjustTargetGroup( final RemoteRepository buildRepo, final Group s
                                                                        "Adding remote repository for Koji build: "
                                                                                + buildRepo.getMetadata( NVR ) );
 
-                storeDataManager.storeArtifactStore( targetGroup, changeSummary, false, true, new EventMetadata() );
+                // storeDataManager.storeArtifactStore( targetGroup, changeSummary, false, true, new EventMetadata() );
+                // Use repo service API to append the member of group instead of to override during target group update.
+                storeDataManager.addConstituentToGroup( targetGroup.getKey(), buildRepo.getKey() );
             }
-            catch ( IndyDataException e )
+            catch ( IndyWorkflowException e )
             {
-                wfEx.set( new IndyWorkflowException( "Cannot store target-group: %s changes for: %s. Error: %s", e,
-                                                        targetGroup.getName(), buildRepo.getMetadata( NVR ),
-                                                        e.getMessage() ) );
+                wfEx.set( e );
                 return null;
             }
 
diff --git a/api/src/main/java/org/commonjava/indy/data/StoreDataManager.java b/api/src/main/java/org/commonjava/indy/data/StoreDataManager.java
index bf5d52a075..fcc22012ea 100644
--- a/api/src/main/java/org/commonjava/indy/data/StoreDataManager.java
+++ b/api/src/main/java/org/commonjava/indy/data/StoreDataManager.java
@@ -15,6 +15,7 @@
  */
 package org.commonjava.indy.data;
 
+import org.commonjava.indy.IndyWorkflowException;
 import org.commonjava.indy.audit.ChangeSummary;
 import org.commonjava.indy.model.core.ArtifactStore;
 import org.commonjava.indy.model.core.Group;
@@ -177,6 +178,9 @@ Set<Group> affectedBy( Collection<StoreKey> keys )
 
     Set<Group> filterAffectedGroups( Set<Group> affectedGroups );
 
+    void addConstituentToGroup( StoreKey key, StoreKey member )
+            throws IndyWorkflowException;
+
     class ContextualTask
     {
         private String threadName;
diff --git a/db/common/src/main/java/org/commonjava/indy/db/common/AbstractStoreDataManager.java b/db/common/src/main/java/org/commonjava/indy/db/common/AbstractStoreDataManager.java
index 10bf213ea0..65c5338910 100644
--- a/db/common/src/main/java/org/commonjava/indy/db/common/AbstractStoreDataManager.java
+++ b/db/common/src/main/java/org/commonjava/indy/db/common/AbstractStoreDataManager.java
@@ -18,6 +18,7 @@
 import org.apache.commons.lang3.StringUtils;
 import org.commonjava.cdi.util.weft.Locker;
 import org.commonjava.cdi.util.weft.NamedThreadFactory;
+import org.commonjava.indy.IndyWorkflowException;
 import org.commonjava.indy.audit.ChangeSummary;
 import org.commonjava.indy.change.event.ArtifactStoreUpdateType;
 import org.commonjava.indy.conf.IndyConfiguration;
@@ -681,4 +682,8 @@ public boolean isExcludedGroup( Group group )
         String filter = indyConfiguration.getAffectedGroupsExcludeFilter();
         return isNotBlank( filter ) && group.getName().matches( filter );
     }
+
+    @Override
+    public abstract void addConstituentToGroup( StoreKey key, StoreKey member )
+            throws IndyWorkflowException;
 }
diff --git a/db/infinispan/src/main/java/org/commonjava/indy/infinispan/data/InfinispanStoreDataManager.java b/db/infinispan/src/main/java/org/commonjava/indy/infinispan/data/InfinispanStoreDataManager.java
index 84d1ba6722..2984f39480 100644
--- a/db/infinispan/src/main/java/org/commonjava/indy/infinispan/data/InfinispanStoreDataManager.java
+++ b/db/infinispan/src/main/java/org/commonjava/indy/infinispan/data/InfinispanStoreDataManager.java
@@ -15,6 +15,7 @@
  */
 package org.commonjava.indy.infinispan.data;
 
+import org.commonjava.indy.IndyWorkflowException;
 import org.commonjava.indy.audit.ChangeSummary;
 import org.commonjava.indy.conf.IndyConfiguration;
 import org.commonjava.indy.data.NoOpStoreEventDispatcher;
@@ -344,4 +345,10 @@ public void initByPkgMap()
             keys.add( store.getKey() );
         }
     }
+
+    @Override
+    public void addConstituentToGroup( StoreKey key, StoreKey member )
+            throws IndyWorkflowException
+    {
+    }
 }
diff --git a/db/memory/src/main/java/org/commonjava/indy/mem/data/MemoryStoreDataManager.java b/db/memory/src/main/java/org/commonjava/indy/mem/data/MemoryStoreDataManager.java
index 68ac1b9a7e..615ca777da 100644
--- a/db/memory/src/main/java/org/commonjava/indy/mem/data/MemoryStoreDataManager.java
+++ b/db/memory/src/main/java/org/commonjava/indy/mem/data/MemoryStoreDataManager.java
@@ -16,6 +16,7 @@
 package org.commonjava.indy.mem.data;
 
 import org.commonjava.cdi.util.weft.NamedThreadFactory;
+import org.commonjava.indy.IndyWorkflowException;
 import org.commonjava.indy.audit.ChangeSummary;
 import org.commonjava.indy.data.IndyDataException;
 import org.commonjava.indy.data.NoOpStoreEventDispatcher;
@@ -29,7 +30,6 @@
 import org.slf4j.LoggerFactory;
 
 import javax.enterprise.context.ApplicationScoped;
-import javax.enterprise.inject.Alternative;
 import javax.inject.Inject;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -180,4 +180,9 @@ protected ArtifactStore putArtifactStoreInternal( StoreKey storeKey, ArtifactSto
         return stores.put( storeKey, store );
     }
 
+    @Override
+    public void addConstituentToGroup( StoreKey key, StoreKey member )
+            throws IndyWorkflowException
+    {
+    }
 }
diff --git a/db/service/src/main/java/org/commonjava/indy/db/service/ServiceStoreDataManager.java b/db/service/src/main/java/org/commonjava/indy/db/service/ServiceStoreDataManager.java
index 047d25dfe2..a89f16685d 100644
--- a/db/service/src/main/java/org/commonjava/indy/db/service/ServiceStoreDataManager.java
+++ b/db/service/src/main/java/org/commonjava/indy/db/service/ServiceStoreDataManager.java
@@ -15,6 +15,7 @@
  */
 package org.commonjava.indy.db.service;
 
+import org.commonjava.indy.IndyWorkflowException;
 import org.commonjava.indy.audit.ChangeSummary;
 import org.commonjava.indy.client.core.Indy;
 import org.commonjava.indy.client.core.IndyClientException;
@@ -56,7 +57,6 @@
 import static java.util.Collections.emptyMap;
 import static java.util.Collections.emptySet;
 import static org.apache.commons.lang3.StringUtils.isBlank;
-import static org.commonjava.indy.db.common.StoreUpdateAction.STORE;
 import static org.commonjava.indy.model.core.ArtifactStore.METADATA_CHANGELOG;
 import static org.commonjava.indy.model.core.StoreType.hosted;
 
@@ -492,4 +492,18 @@ protected void removeAffectedStore( StoreKey key )
         logger.debug( "Do nothing here. Delegate to repository service for further operations." );
     }
 
+    @Override
+    public void addConstituentToGroup( StoreKey key, StoreKey member )
+            throws IndyWorkflowException
+    {
+        try
+        {
+            client.module( IndyStoresClientModule.class ).addConstituentToGroup( key, member );
+        }
+        catch ( IndyClientException e )
+        {
+            throw new IndyWorkflowException( "Failed to add member %s into Group %s, Error: %s", e, member, key,
+                                             e.getMessage() );
+        }
+    }
 }
diff --git a/pom.xml b/pom.xml
index 79fc6217a2..3bf2567d91 100644
--- a/pom.xml
+++ b/pom.xml
@@ -106,7 +106,7 @@
 
     <!-- commonjava/redhat projects -->
     <indyModelVersion>1.5</indyModelVersion>
-    <indyClientVersion>3.4.0</indyClientVersion>
+    <indyClientVersion>3.4.4-SNAPSHOT</indyClientVersion>
     <atlasVersion>1.1.4</atlasVersion>
     <galleyVersion>1.20</galleyVersion>
     <weftVersion>1.24</weftVersion>