diff --git a/ChangeLog b/ChangeLog
index ecd695878e02f9f01d7b1f0b985ca2b7cf2fc934..40cdcd4225214bd5398cc627104001996629bef2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -36,8 +36,9 @@ Fix: If multiprice level is used the VAT on addline is not correct
 Fix: [ bug #1254 ] Error when using "Enter" on qty input box of a product (on supplier order part)
 Fix: [ bug #1462, 1468, 1480, 1483, 1490, 1497] $this instead of $object
 Fix: [ bug #1455 ] outstanding amount
-Fix: [ bug #1425 ]
 Fix: [ bug #1425 ] LINEBILL_SUPPLIER_DELETE failure trigger leads to an endless loop
+Fix: [ bug #1460 ] Several supplier order triggers do not show error messages
+Fix: [ bug #1461 ] LINEORDER_SUPPLIER_CREATE does not intercept supplier order line insertion
 
 ***** ChangeLog for 3.5.3 compared to 3.5.2 *****
 Fix: Error on field accountancy code for export profile of invoices.
diff --git a/htdocs/core/triggers/interface_90_all_Demo.class.php-NORUN b/htdocs/core/triggers/interface_90_all_Demo.class.php-NORUN
index e3257e2bda864c7b3b0c8d1241346cb546dd68f1..f8d58ab4c35e915160117bd904840156adb06468 100644
--- a/htdocs/core/triggers/interface_90_all_Demo.class.php-NORUN
+++ b/htdocs/core/triggers/interface_90_all_Demo.class.php-NORUN
@@ -257,10 +257,30 @@ class InterfaceDemo
         {
             dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
         }
+        elseif ($action == 'ORDER_SUPPLIER_CLONE')
+        {
+            dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
+        }      
         elseif ($action == 'ORDER_SUPPLIER_VALIDATE')
         {
             dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
         }
+        elseif ($action == 'ORDER_SUPPLIER_DELETE')
+        {   
+            dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
+        }
+        elseif ($action == 'ORDER_SUPPLIER_APPROVE')
+        {   
+            dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
+        }
+        elseif ($action == 'ORDER_SUPPLIER_REFUSE')
+        {   
+            dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
+        }
+        elseif ($action == 'ORDER_SUPPLIER_CANCEL')
+        {   
+            dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
+        }
         elseif ($action == 'ORDER_SUPPLIER_SENTBYMAIL')
         {
             dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
@@ -421,6 +441,8 @@ class InterfaceDemo
         }
 		elseif ($action == 'LINEBILL_SUPPLIER_DELETE')
         {
+        	$object->error='Erreur trigger';
+        	return -1;
             dol_syslog("Trigger '".$this->name."' for action '$action' launched by ".__FILE__.". id=".$object->id);
         }
         
diff --git a/htdocs/fourn/class/fournisseur.commande.class.php b/htdocs/fourn/class/fournisseur.commande.class.php
index c67b15bc61926873ae373d88b1fd1f0684545dba..0a0067f1105c11d4bbd39a514c30b73096a52b58 100644
--- a/htdocs/fourn/class/fournisseur.commande.class.php
+++ b/htdocs/fourn/class/fournisseur.commande.class.php
@@ -390,7 +390,13 @@ class CommandeFournisseur extends CommonOrder
                 include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
                 $interface=new Interfaces($this->db);
                 $result=$interface->run_triggers('ORDER_SUPPLIER_VALIDATE',$this,$user,$langs,$conf);
-                if ($result < 0) { $error++; $this->errors=$interface->errors; }
+                if ($result < 0) 
+                { 
+                    $error++; 
+                    $this->errors=$interface->errors;
+                    $this->db->rollback();
+                    return -1;
+                }
                 // Fin appel triggers
             }
 
@@ -401,9 +407,9 @@ class CommandeFournisseur extends CommonOrder
             }
             else
             {
+                $this->error=$this->db->lasterror();
                 dol_syslog(get_class($this)."::valid ".$this->error, LOG_ERR);
                 $this->db->rollback();
-                $this->error=$this->db->lasterror();
                 return -1;
             }
         }
@@ -743,8 +749,7 @@ class CommandeFournisseur extends CommonOrder
                 }
                 else
                 {
-                    $this->db->rollback();
-                    $this->error=$this->db->lasterror();
+                    $this->db->rollback();               
                     return -1;
                 }
             }
@@ -779,9 +784,11 @@ class CommandeFournisseur extends CommonOrder
         $result = 0;
         if ($user->rights->fournisseur->commande->approuver)
         {
+            $this->db->begin();
+            
             $sql = "UPDATE ".MAIN_DB_PREFIX."commande_fournisseur SET fk_statut = 9";
-            $sql .= " WHERE rowid = ".$this->id;
-
+            $sql .= " WHERE rowid = ".$this->id;         
+            
             if ($this->db->query($sql))
             {
                 $result = 0;
@@ -793,12 +800,19 @@ class CommandeFournisseur extends CommonOrder
                     include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
                     $interface=new Interfaces($this->db);
                     $result=$interface->run_triggers('ORDER_SUPPLIER_REFUSE',$this,$user,$langs,$conf);
-                    if ($result < 0) { $error++; $this->errors=$interface->errors; }
+                    if ($result < 0) 
+                    { 
+                        $error++;
+                        $this->errors=$interface->errors;
+                        $this->db->rollback();   
+                    }
                     // Fin appel triggers
                 }
             }
             else
             {
+                $this->db->rollback();
+                $this->error=$this->db->lasterror();
                 dol_syslog(get_class($this)."::refuse Error -1");
                 $result = -1;
             }
@@ -855,7 +869,6 @@ class CommandeFournisseur extends CommonOrder
                 else
                 {
                     $this->db->rollback();
-                    $this->error=$this->db->lasterror();
                     return -1;
                 }
             }
@@ -1039,7 +1052,13 @@ class CommandeFournisseur extends CommonOrder
 	                    include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
 	                    $interface=new Interfaces($this->db);
 	                    $result=$interface->run_triggers('ORDER_SUPPLIER_CREATE',$this,$user,$langs,$conf);
-	                    if ($result < 0) { $error++; $this->errors=$interface->errors; }
+	                    if ($result < 0) 
+	                    {
+	                        $error++;
+	                        $this->errors=$interface->errors;
+	                        $this->db->rollback();
+	                        return -1;
+	                    }
 	                    // Fin appel triggers
 	                }
 
@@ -1286,7 +1305,13 @@ class CommandeFournisseur extends CommonOrder
                     include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
                     $interface=new Interfaces($this->db);
                     $result=$interface->run_triggers('LINEORDER_SUPPLIER_CREATE',$this,$user,$langs,$conf);
-                    if ($result < 0) { $error++; $this->errors=$interface->errors; }
+                    if ($result < 0) 
+                    { 
+                        $error++;
+                        $this->errors=$interface->errors;
+                        $this->db->rollback();
+                        return -1;
+                    }
                     // Fin appel triggers
                 }
 
@@ -1351,7 +1376,13 @@ class CommandeFournisseur extends CommonOrder
                     include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
                     $interface=new Interfaces($this->db);
                     $result=$interface->run_triggers('LINEORDER_SUPPLIER_DISPATCH',$this,$user,$langs,$conf);
-                    if ($result < 0) { $error++; $this->errors=$interface->errors; }
+                    if ($result < 0)
+                    { 
+                        $error++;
+                        $this->errors=$interface->errors;
+                        $this->db->rollback();
+                        return -1;
+                    }
                     // Fin appel triggers
                 }
 
@@ -1380,6 +1411,7 @@ class CommandeFournisseur extends CommonOrder
                 }
             }
 
+            //TODO: Check if there is a current transaction in DB but seems not.
             if ($error == 0)
             {
                 $this->db->commit();
@@ -1410,7 +1442,8 @@ class CommandeFournisseur extends CommonOrder
         {
             $sql = "DELETE FROM ".MAIN_DB_PREFIX."commande_fournisseurdet WHERE rowid = ".$idligne;
             $resql=$this->db->query($sql);
-
+            
+            //TODO: Add trigger for deleted line
             dol_syslog(get_class($this)."::deleteline sql=".$sql);
             if ($resql)
             {
@@ -1457,11 +1490,13 @@ class CommandeFournisseur extends CommonOrder
         {
             if ($this->db->affected_rows($resql) < 1)
             {
+                $this->error=$this->db->lasterror();
                 $error++;
             }
         }
         else
         {
+            $this->error=$this->db->lasterror();
             $error++;
         }
 
@@ -1524,7 +1559,6 @@ class CommandeFournisseur extends CommonOrder
 		}
 		else
 		{
-			$this->error=$this->db->lasterror();
 			dol_syslog(get_class($this)."::delete ".$this->error, LOG_ERR);
 			$this->db->rollback();
 			return -$error;
@@ -1725,7 +1759,7 @@ class CommandeFournisseur extends CommonOrder
         $resql = $this->db->query($sql);
         if ($resql)
         {
-
+            //TODO: Add trigger for status modification
         }
         else
         {
@@ -1849,7 +1883,13 @@ class CommandeFournisseur extends CommonOrder
                     include_once DOL_DOCUMENT_ROOT . '/core/class/interfaces.class.php';
                     $interface=new Interfaces($this->db);
                     $result=$interface->run_triggers('LINEORDER_SUPPLIER_UPDATE',$this,$user,$langs,$conf);
-                    if ($result < 0) { $error++; $this->errors=$interface->errors; }
+                    if ($result < 0)
+                    {
+                        $error++;
+                        $this->errors=$interface->errors;
+                        $this->db->rollback();
+                        return -1;
+                    }
                     // Fin appel triggers
                 }
 
diff --git a/htdocs/fourn/commande/fiche.php b/htdocs/fourn/commande/fiche.php
index 24b80a60f94c329a0c761e8e1306dd9ae2441d28..04a3b90581dfadbc5f0286649d8d26a721e21257 100644
--- a/htdocs/fourn/commande/fiche.php
+++ b/htdocs/fourn/commande/fiche.php
@@ -931,7 +931,7 @@ if ($action == 'send' && ! GETPOST('addfile') && ! GETPOST('removedfile') && ! G
 
                         if ($error)
                         {
-                            dol_print_error($db);
+                            setEventMessage($object->error, 'errors');
                         }
                         else
                         {
@@ -1057,6 +1057,7 @@ if ($action=="create")
 	print_fiche_titre($langs->trans('NewOrder'));
 
 	dol_htmloutput_mesg($mesg);
+	dol_htmloutput_events();
 
 	$societe='';
 	if ($socid>0)