diff --git a/htdocs/contrat/contrat.class.php b/htdocs/contrat/contrat.class.php
index c3d9edf84e1..dbcefe51603 100644
--- a/htdocs/contrat/contrat.class.php
+++ b/htdocs/contrat/contrat.class.php
@@ -661,8 +661,7 @@ class Contrat extends CommonObject
      */
     function addline($desc, $pu, $qty, $txtva, $fk_product=0, $remise_percent=0, $date_start, $date_end, $price_base_type='HT')
     {
-        global $langs;
-		global $conf;
+        global $langs, $conf;
         
 		// Nettoyage parametres
 		if (! $txtva) $txtva=0;
@@ -674,7 +673,7 @@ class Contrat extends CommonObject
 		
         dolibarr_syslog("Contrat::addline $desc, $pu, $qty, $txtva, $fk_product, $remise_percent, $date_start, $date_end, $price_base_type, $info_bits");
 
-        if ($this->statut == 0)
+        if ($this->statut == 0 || ($this->statut == 1 && $conf->global->CONTRAT_EDITWHENVALIDATED))
         {
             if ($fk_product > 0)
             {
@@ -743,6 +742,7 @@ class Contrat extends CommonObject
         }
         else
         {
+			dolibarr_syslog("Contrat::addline ErrorTryToAddLineOnValidatedContract", LOG_ERR);
             return -2;
         }
     }
@@ -826,20 +826,24 @@ class Contrat extends CommonObject
     }
     
     /**
-     *      \brief      Supprime une ligne de detail
-     *      \param      idligne     Id de la ligne detail à supprimer
-     *      \return     int         >0 si ok, <0 si ko
+     *      \brief      Delete a contract line
+     *      \param      idline		Id of line to delete
+     *      \return     int         >0 if OK, <0 if KO
      */
-    function delete_line($idligne)
+    function delete_line($idline)
     {
-        if ($this->statut == 0)
+		global $conf;
+		
+        if ($contrat->statut == 0 ||
+			($contrat->statut == 1 && $conf->global->CONTRAT_EDITWHENVALIDATED) )
         {
-            $sql = "DELETE FROM ".MAIN_DB_PREFIX."contratdet WHERE rowid =".$idligne;
-        
+            $sql = "DELETE FROM ".MAIN_DB_PREFIX."contratdet";
+			$sql.= " WHERE rowid =".$idline;
+
+			dolibarr_syslog("Contrat::delete_line sql=".$sql);
             if ($this->db->query($sql) )
             {
                 $this->update_price();
-        
                 return 1;
             }
             else
diff --git a/htdocs/contrat/fiche.php b/htdocs/contrat/fiche.php
index e2862b8ed0b..37977f4ab1f 100644
--- a/htdocs/contrat/fiche.php
+++ b/htdocs/contrat/fiche.php
@@ -334,11 +334,15 @@ if ($_GET["action"] == 'deleteline' && $user->rights->contrat->creer)
     $contrat->fetch($_GET["id"]);
     $result = $contrat->delete_line($_GET["lineid"]);
 
-    if ($result == 0)
+    if ($result >= 0)
     {
         Header("Location: fiche.php?id=".$contrat->id);
         exit;
     }
+	else
+	{
+		$mesg=$contrat->error;
+	}
 }
 
 if ($_POST["action"] == 'confirm_valid' && $_POST["confirm"] == 'yes' && $user->rights->contrat->creer)
@@ -357,7 +361,7 @@ if ($_POST["action"] == 'confirm_close' && $_POST["confirm"] == 'yes' && $user->
 
 if ($_POST["action"] == 'confirm_delete' && $_POST["confirm"] == 'yes')
 {
-    if ($user->rights->contrat->supprimer )
+    if ($user->rights->contrat->supprimer)
     {
         $contrat = new Contrat($db);
         $contrat->id = $_GET["id"];
@@ -783,7 +787,8 @@ else
 					else {
 						print '&nbsp;';
 					}
-					if ($contrat->statut == 0  && $user->rights->contrat->creer)
+					if ( ($contrat->statut == 0 || ($contrat->statut == 1 && $conf->global->CONTRAT_EDITWHENVALIDATED))
+						&& $user->rights->contrat->creer)
 					{
 						print '&nbsp;';
 						print '<a href="fiche.php?id='.$id.'&amp;action=deleteline&amp;lineid='.$objp->rowid.'">';
@@ -1067,7 +1072,8 @@ else
 		/*
 		 * Ajouter une ligne produit/service
 		 */
-		if ($user->rights->contrat->creer && ($contrat->statut == 0  || $conf->global->CONTRAT_EDITWHENVALIDATED))
+		if ($user->rights->contrat->creer &&
+			($contrat->statut == 0 || ($contrat->statut == 1  && $conf->global->CONTRAT_EDITWHENVALIDATED)) )
 		{
 			print '<br>';
 			print '<table class="noborder" width="100%">';	// Array with (n*2)+1 lines