diff --git a/erpnext/stock/doctype/item/item.js b/erpnext/stock/doctype/item/item.js
index 58b1adb..3bd5657 100644
--- a/erpnext/stock/doctype/item/item.js
+++ b/erpnext/stock/doctype/item/item.js
@@ -86,8 +86,12 @@
 	},
 	
 	manage_variants: function(frm) {
-		frappe.route_options = {"item_code": frm.doc.name };
-		frappe.set_route("List", "Manage Variants");
+		if (cur_frm.doc.__unsaved==1) {
+			frappe.throw(__("You have unsaved changes. Please save."))
+		} else {
+			frappe.route_options = {"item_code": frm.doc.name };
+			frappe.set_route("List", "Manage Variants");
+		}
 	}
 });
 
diff --git a/erpnext/stock/doctype/item/item.py b/erpnext/stock/doctype/item/item.py
index a2e0ade..d3d8e9c 100644
--- a/erpnext/stock/doctype/item/item.py
+++ b/erpnext/stock/doctype/item/item.py
@@ -325,7 +325,8 @@
 			for d in variants:
 				update_variant(self.name, d)
 				updated.append(d.item_code)
-			frappe.msgprint(_("Item Variants {0} updated").format(", ".join(updated)))
+			if updated:
+				frappe.msgprint(_("Item Variants {0} updated").format(", ".join(updated)))
 				
 	def validate_has_variants(self):
 		if not self.has_variants and frappe.db.get_value("Item", self.name, "has_variants"):