diff --git a/store2store/src/main/java/com/playmoweb/store2store/service/api/AbstractService.java b/store2store/src/main/java/com/playmoweb/store2store/service/api/AbstractService.java
index 1692905..59c17ca 100644
--- a/store2store/src/main/java/com/playmoweb/store2store/service/api/AbstractService.java
+++ b/store2store/src/main/java/com/playmoweb/store2store/service/api/AbstractService.java
@@ -180,6 +180,40 @@ public Observable<List<T>> call(List<T> items) {
         return storage.insertOrUpdate(objects);
     }
 
+    @Override
+    public Observable<T> update(final T object, CustomObserver<T> otherSubscriber) {
+        final Subscription s = update(object)
+                .flatMap(new Func1<T, Observable<T>>() {
+                    @Override
+                    public Observable<T> call(T item) {
+                        return storage.insertOrUpdate(item);
+                    }
+                })
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribeOn(Schedulers.io())
+                .subscribe(new SimpleObserver<>(otherSubscriber));
+
+        subscriptions.add(s);
+        return Observable.just(object);
+    }
+
+    @Override
+    public Observable<List<T>> update(final List<T> objects, CustomObserver<List<T>> otherSubscriber) {
+        final Subscription s = update(objects)
+                .flatMap(new Func1<List<T>, Observable<List<T>>>() {
+                    @Override
+                    public Observable<List<T>> call(List<T> items) {
+                        return storage.insertOrUpdate(items);
+                    }
+                })
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribeOn(Schedulers.io())
+                .subscribe(new SimpleObserver<>(otherSubscriber));
+
+        subscriptions.add(s);
+        return storage.insertOrUpdate(objects);
+    }
+
     @Override
     public Observable<Void> delete(final T object, CustomObserver<Void> otherSubscriber) {
         final Subscription s = delete(object)
@@ -292,6 +326,20 @@ public Observable<Void> call(List<T> ts) {
      */
     protected abstract Observable<List<T>> insert(List<T> items);
 
+    /**
+     *
+     * @param object
+     * @return
+     */
+    protected abstract Observable<T> update(T object);
+
+    /**
+     *
+     * @param items
+     * @return
+     */
+    protected abstract Observable<List<T>> update(List<T> items);
+
     /**
      *
      * @param items
diff --git a/store2store/src/main/java/com/playmoweb/store2store/service/api/IService.java b/store2store/src/main/java/com/playmoweb/store2store/service/api/IService.java
index 4aece3a..898cede 100644
--- a/store2store/src/main/java/com/playmoweb/store2store/service/api/IService.java
+++ b/store2store/src/main/java/com/playmoweb/store2store/service/api/IService.java
@@ -55,6 +55,22 @@ public interface IService<T> {
      */
     Observable<List<T>> insert(final List<T> objects, final CustomObserver<List<T>> otherSubscriber);
 
+    /**
+     * Update one object
+     * @param otherSubscriber
+     * @param object
+     * @return
+     */
+    Observable<T> update(final T object, final CustomObserver<T> otherSubscriber);
+
+    /**
+     * Update all objects
+     * @param otherSubscriber
+     * @param objects
+     * @return
+     */
+    Observable<List<T>> update(final List<T> objects, final CustomObserver<List<T>> otherSubscriber);
+
     /**
      * Delete one object
      * @param object
diff --git a/store2store/src/main/java/com/playmoweb/store2store/service/impl/BaseRealmService.java b/store2store/src/main/java/com/playmoweb/store2store/service/impl/BaseRealmService.java
index 6f3310c..101b824 100644
--- a/store2store/src/main/java/com/playmoweb/store2store/service/impl/BaseRealmService.java
+++ b/store2store/src/main/java/com/playmoweb/store2store/service/impl/BaseRealmService.java
@@ -58,6 +58,16 @@ protected Observable<List<T>> insert(List<T> items) {
         return null;
     }
 
+    @Override
+    protected Observable<T> update(T object) {
+        return null;
+    }
+
+    @Override
+    protected Observable<List<T>> update(List<T> items) {
+        return null;
+    }
+
     @Override
     protected Observable<Void> delete(List<T> items) {
         return null;