diff --git a/sat/plugins/plugin_misc_merge_requests.py b/sat/plugins/plugin_misc_merge_requests.py
index 980af5bb..c1f4a35d 100644
--- a/sat/plugins/plugin_misc_merge_requests.py
+++ b/sat/plugins/plugin_misc_merge_requests.py
@@ -194,8 +194,8 @@ class MergeRequests(object):
              extra=None, profile_key=C.PROF_KEY_NONE):
         client, service, node, schema, item_id, extra = self._s.prepareBridgeSet(
             service, node, schema, item_id, extra, profile_key)
-        d = self.set(client, service, node, repository, method, values, schema, item_id,
-                     extra, deserialise=True)
+        d = self.set(client, service, node, repository, method, values, schema,
+                     item_id or None, extra, deserialise=True)
         d.addCallback(lambda ret: ret or u'')
         return d
 
diff --git a/sat_frontends/jp/base.py b/sat_frontends/jp/base.py
index cc7a9be7..2de0faa1 100644
--- a/sat_frontends/jp/base.py
+++ b/sat_frontends/jp/base.py
@@ -367,7 +367,8 @@ class Jp(object):
                 default = defaults.pop(u'item', _(u'last item'))
                 if default is not None:
                     item_help += _(u" (DEFAULT: {default})".format(default=default))
-            pubsub_group.add_argument("-i", "--item", type=unicode_decoder, help=item_help)
+            pubsub_group.add_argument("-i", "--item", type=unicode_decoder, default=u'',
+                                      help=item_help)
             pubsub_group.add_argument("-L", "--last-item", action='store_true', help=_(u'retrieve last item'))
         elif flags.multi_items:
             # mutiple items, this activate several features: max-items, RSM, MAM
diff --git a/sat_frontends/jp/cmd_blog.py b/sat_frontends/jp/cmd_blog.py
index 44469463..ec0e86d5 100644
--- a/sat_frontends/jp/cmd_blog.py
+++ b/sat_frontends/jp/cmd_blog.py
@@ -183,7 +183,7 @@ class Set(base.CommandBase, BlogPublishCommon):
         self.pubsub_item = self.args.item
         mb_data = {}
         self.setMbDataFromArgs(mb_data)
-        if self.pubsub_item is not None:
+        if self.pubsub_item:
             mb_data["id"] = self.pubsub_item
         content = codecs.getreader("utf-8")(sys.stdin).read()
         self.setMbDataContent(content, mb_data)
@@ -541,7 +541,7 @@ class Edit(base.CommandBase, BlogPublishCommon, common.BaseEdit):
     def publish(self, content, mb_data):
         self.setMbDataContent(content, mb_data)
 
-        if self.pubsub_item is not None:
+        if self.pubsub_item:
             mb_data["id"] = self.pubsub_item
 
         mb_data = data_format.serialise(mb_data)
diff --git a/sat_frontends/jp/cmd_event.py b/sat_frontends/jp/cmd_event.py
index 58e032cc..8e2728c2 100644
--- a/sat_frontends/jp/cmd_event.py
+++ b/sat_frontends/jp/cmd_event.py
@@ -43,7 +43,7 @@ class Get(base.CommandBase):
             "get",
             use_output=C.OUTPUT_DICT,
             use_pubsub=True,
-            pubsub_flags={C.NODE, C.ITEM, C.SINGLE_ITEM},
+            pubsub_flags={C.SINGLE_ITEM},
             use_verbose=True,
             help=_(u"get event data"),
         )
@@ -125,7 +125,6 @@ class Create(EventBase, base.CommandBase):
             host,
             "create",
             use_pubsub=True,
-            pubsub_flags={C.NODE},
             help=_("create or replace event"),
         )
         EventBase.__init__(self)
diff --git a/sat_frontends/jp/cmd_pubsub.py b/sat_frontends/jp/cmd_pubsub.py
index bcb0c11b..dba84388 100644
--- a/sat_frontends/jp/cmd_pubsub.py
+++ b/sat_frontends/jp/cmd_pubsub.py
@@ -896,7 +896,7 @@ class Delete(base.CommandBase):
             host,
             "delete",
             use_pubsub=True,
-            pubsub_flags={C.NODE, C.SINGLE_ITEM},
+            pubsub_flags={C.NODE, C.ITEM, C.SINGLE_ITEM},
             help=_(u"delete an item"),
         )
         self.need_loop = True
@@ -980,7 +980,7 @@ class Edit(base.CommandBase, common.BaseEdit):
                 error=True,
             )
             self.host.quit(1)
-        items = [item] if item is not None else []
+        items = [item] if item else []
         item_raw = self.host.bridge.psItemsGet(
             service, node, 1, items, "", {}, self.profile
         )[0][0]