diff --git a/IOB-WIN-NEXT/Iob/Generic.cs b/IOB-WIN-NEXT/Iob/Generic.cs
index 08cf3de6..028fc671 100644
--- a/IOB-WIN-NEXT/Iob/Generic.cs
+++ b/IOB-WIN-NEXT/Iob/Generic.cs
@@ -4095,18 +4095,27 @@ namespace IOB_WIN_NEXT.Iob
         /// </summary>
         /// <param name="chiave"></param>
         /// <param name="valore"></param>
-        public void upsertKey(string chiave, string valore)
+        /// <returns>True se modificato/inserito, false se INVARIATO</returns>
+        public bool upsertKey(string chiave, string valore)
         {
+            bool done = false;
             if (currProdData.ContainsKey(chiave))
             {
-                currProdData[chiave] = valore;
+                // se variato inserisco...
+                if (currProdData[chiave] != valore)
+                {
+                    currProdData[chiave] = valore;
+                    done = true;
+                }
             }
             else
             {
                 currProdData.Add(chiave, valore);
+                done = true;
             }
             // salvo in redis...
             redisMan.redSaveHashDict(rKeyCurrProdData, currProdData);
+            return done;
         }
 
         /// <summary>
@@ -8434,7 +8443,7 @@ namespace IOB_WIN_NEXT.Iob
             if (!string.IsNullOrEmpty(getOptPar("ENABLE_MEM_REWRITE")))
             {
                 bool.TryParse(getOptPar("ENABLE_MEM_REWRITE"), out ENABLE_MEM_REWRITE);
-            }            
+            }
         }
 
         private void svuotaCodaContapezzi()