diff --git a/LiMan.DB/Controllers/DbController.cs b/LiMan.DB/Controllers/DbController.cs
index 434cad7..ff9bf0f 100644
--- a/LiMan.DB/Controllers/DbController.cs
+++ b/LiMan.DB/Controllers/DbController.cs
@@ -342,11 +342,35 @@ namespace LiMan.DB.Controllers
                 {
                     if (licenza.IsValid && (licenza.NumLicenze >= (attivList.Count + ParamDict.Count)))
                     {
-                        DateTime vetoDate = DateTime.Today.AddDays(numDayVeto);
-                        using (LMDbContext localDbCtx = new LMDbContext(_configuration))
+                        DateTime oggi = DateTime.Today;
+                        DateTime vetoDate = oggi.AddDays(numDayVeto);
+                        using (LMDbContext dbCtx = new LMDbContext(_configuration))
                         {
                             try
                             {
+                                // cerco eventuali licenze preesistenti (per CodImp) e le elimino SE sono libere...
+                                List<SubLicenzaModel> list2rem = new List<SubLicenzaModel>();
+                                foreach (var item in ParamDict)
+                                {
+                                    var rec2del = dbCtx
+                                                    .DbSetSubLicenze
+                                                    .Where(x => x.CodImpiego == item.Key && x.VetoUnlock <= oggi)
+                                                    .FirstOrDefault();
+                                    if(rec2del!=null)
+                                    {
+                                        list2rem.Add(rec2del);
+                                    }
+                                }
+                                // se ce ne sono rimuovo e salvo...
+                                if(list2rem!=null && list2rem.Count>0)
+                                {
+                                    dbCtx
+                                        .DbSetSubLicenze
+                                        .RemoveRange(list2rem);
+
+                                    dbCtx.SaveChanges();
+                                }
+
                                 // genero subLicenze...
                                 var newRec = ParamDict
                                     .Select(x => new SubLicenzaModel()
@@ -358,11 +382,11 @@ namespace LiMan.DB.Controllers
                                         Chiave = x.Value
                                     })
                                     .ToList();
-                                localDbCtx
+                                dbCtx
                                     .DbSetSubLicenze
                                     .AddRange(newRec);
 
-                                localDbCtx.SaveChanges();
+                                dbCtx.SaveChanges();
                             }
                             catch (Exception exc)
                             {