diff --git a/htdocs/facture.class.php b/htdocs/facture.class.php
index 030ee52a013..859c1cbe202 100644
--- a/htdocs/facture.class.php
+++ b/htdocs/facture.class.php
@@ -843,7 +843,7 @@ class Facture
 			$action_notify = 2; // ne pas modifier cette valeur
 			if ($force_number)
 			{
-				$numfa=$force_number;
+				$numfa = $force_number;
 			}
 			else
 			{
@@ -941,6 +941,8 @@ class Facture
             {
                 $this->use_webcal=($conf->global->PHPWEBCALENDAR_BILLSTATUS=='always'?1:0);
 
+                $this->ref = $numfa;
+                
                 // Appel des triggers
                 include_once(DOL_DOCUMENT_ROOT . "/interfaces.class.php");
                 $interface=new Interfaces($this->db);
diff --git a/htdocs/includes/triggers/interface_webcal.class.php b/htdocs/includes/triggers/interface_webcal.class.php
index 5788b4c21a5..db49e2a4099 100644
--- a/htdocs/includes/triggers/interface_webcal.class.php
+++ b/htdocs/includes/triggers/interface_webcal.class.php
@@ -151,7 +151,7 @@ class InterfaceWebCal
             $this->duree=0;
             $this->texte=$langs->trans("NewCompanyToDolibarr",$object->nom);
             $this->desc=$langs->trans("NewCompanyToDolibarr",$object->nom);
-            $this->desc.="\n".$langs->trans("Prefix").': '.$object->prefix;
+            if ($object->prefix) $this->desc.=" (".$object->prefix.")";
             //$this->desc.="\n".$langs->trans("Customer").': '.yn($object->client);
             //$this->desc.="\n".$langs->trans("Supplier").': '.yn($object->fournisseur);
             $this->desc.="\n".$langs->trans("Author").': '.$user->code;
@@ -192,6 +192,56 @@ class InterfaceWebCal
             $this->desc.="\n".$langs->trans("Author").': '.$user->code;
         }
 
+        if ($action == 'PROPAL_CREATE')
+        {
+			// Pas interessant
+		}
+        if ($action == 'PROPAL_MODIFY')
+        {
+			// Etat brouillon pas interessant
+		}
+        if ($action == 'PROPAL_VALIDATE')
+        {
+            dolibarr_syslog("Trigger '".$this->name."' for action '$action' launched. id=".$object->id);
+            $langs->load("other");
+
+            $this->date=time();
+            $this->duree=0;
+            $this->texte=$langs->trans("PropalValidatedInDolibarr",$object->ref);
+            $this->desc=$langs->trans("PropalValidatedInDolibarr",$object->ref);
+            $this->desc.="\n".$langs->trans("Author").': '.$user->code;
+        }
+        if ($action == 'PROPAL_CLOSE_SIGNED')
+        {
+            dolibarr_syslog("Trigger '".$this->name."' for action '$action' launched. id=".$object->id);
+            $langs->load("other");
+
+            $this->date=time();
+            $this->duree=0;
+            $this->texte=$langs->trans("PropalClosedSignedInDolibarr",$object->ref);
+            $this->desc=$langs->trans("PropalClosedSignedInDolibarr",$object->ref);
+            $this->desc.="\n".$langs->trans("Author").': '.$user->code;
+        }
+        if ($action == 'PROPAL_CLOSE_REFUSED')
+        {
+            dolibarr_syslog("Trigger '".$this->name."' for action '$action' launched. id=".$object->id);
+            $langs->load("other");
+
+            $this->date=time();
+            $this->duree=0;
+            $this->texte=$langs->trans("PropalClosedRefusedInDolibarr",$object->ref);
+            $this->desc=$langs->trans("PropalClosedRefusedInDolibarr",$object->ref);
+            $this->desc.="\n".$langs->trans("Author").': '.$user->code;
+        }
+        
+        if ($action == 'BILL_CREATE')
+        {
+			// Etat brouillon pas interessant
+		}
+        if ($action == 'BILL_MODIFY')
+        {
+			// Pas interessant
+		}
         if ($action == 'BILL_VALIDATE')
         {
             dolibarr_syslog("Trigger '".$this->name."' for action '$action' launched. id=".$object->id);