diff --git a/htdocs/bom/bom_card.php b/htdocs/bom/bom_card.php
index ee619a589e3..573478a6b3d 100644
--- a/htdocs/bom/bom_card.php
+++ b/htdocs/bom/bom_card.php
@@ -180,6 +180,16 @@ if (empty($reshook)) {
 			$error++;
 		}
 
+		// We check if we're allowed to add this bom
+		$TParentBom=array();
+		$object->getParentBomTreeRecursive($TParentBom);
+		if ($bom_child_id > 0 && !empty($TParentBom) && in_array($bom_child_id, $TParentBom)) {
+			$n_child = new BOM($db);
+			$n_child->fetch($bom_child_id);
+			setEventMessages($langs->transnoentities('BomCantAddChildBom', $n_child->getNomUrl(1), $object->getNomUrl(1)), null, 'errors');
+			$error++;
+		}
+
 		if (!$error) {
 			$bomline = new BOMLine($db);
 			$bomline->fk_bom = $id;
diff --git a/htdocs/bom/class/bom.class.php b/htdocs/bom/class/bom.class.php
index 8adcac855c2..539046c593b 100644
--- a/htdocs/bom/class/bom.class.php
+++ b/htdocs/bom/class/bom.class.php
@@ -1147,6 +1147,38 @@ class BOM extends CommonObject
 			}
 		}
 	}
+
+	/**
+	 * Recursively retrieves all parent bom in the tree that leads to the $bom_id bom
+	 *
+	 * @param 	array	$TParentBom		We put all found parent bom in $TParentBom
+	 * @param 	int		$bom_id			ID of bom from which we want to get parent bom ids
+	 * @param 	int		$level		Protection against infinite loop
+	 * @return 	void
+	 */
+	public function getParentBomTreeRecursive(&$TParentBom, $bom_id = '', $level = 1)
+	{
+
+		// Protection against infinite loop
+		if ($level > 1000) {
+			return;
+		}
+
+		if (empty($bom_id)) $bom_id=$this->id;
+
+		$sql = 'SELECT l.fk_bom, b.label
+				FROM '.MAIN_DB_PREFIX.'bom_bomline l
+				INNER JOIN '.MAIN_DB_PREFIX.$this->table_element.' b ON b.rowid = l.fk_bom
+				WHERE fk_bom_child = '.((int) $bom_id);
+
+		$resql = $this->db->query($sql);
+		if (!empty($resql)) {
+			while ($res = $this->db->fetch_object($resql)) {
+				$TParentBom[$res->fk_bom] = $res->fk_bom;
+				$this->getParentBomTreeRecursive($TParentBom, $res->fk_bom, $level+1);
+			}
+		}
+	}
 }
 
 
diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index cf9eb2c913f..4050cf69ed0 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -315,8 +315,28 @@ if (empty($reshook)) {
 
 		if (!$error) {
 			$result = $object->set_date($user, $datep);
+			if ($result > 0 && !empty($object->duree_validite) && !empty($object->fin_validite)) {
+				$datev = $datep + ($object->duree_validite * 24 * 3600);
+				$result = $object->set_echeance($user, $datev, 1);
+			}
 			if ($result < 0) {
 				dol_print_error($db, $object->error);
+			} elseif (empty($conf->global->MAIN_DISABLE_PDF_AUTOUPDATE)) {
+				$outputlangs = $langs;
+				$newlang = '';
+				if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang) && GETPOST('lang_id', 'aZ09')) $newlang = GETPOST('lang_id', 'aZ09');
+				if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang))	$newlang = $object->thirdparty->default_lang;
+				if (!empty($newlang)) {
+					$outputlangs = new Translate("", $conf);
+					$outputlangs->setDefaultLang($newlang);
+				}
+				$model = $object->model_pdf;
+				$ret = $object->fetch($id); // Reload to get new records
+				if ($ret > 0) {
+					$object->fetch_thirdparty();
+				}
+
+				$object->generateDocument($model, $outputlangs, $hidedetails, $hidedesc, $hideref);
 			}
 		}
 	} elseif ($action == 'setecheance' && $usercancreate) {
@@ -325,8 +345,8 @@ if (empty($reshook)) {
 			if (empty($conf->global->MAIN_DISABLE_PDF_AUTOUPDATE)) {
 				$outputlangs = $langs;
 				$newlang = '';
-				if ($conf->global->MAIN_MULTILANGS && empty($newlang) && GETPOST('lang_id', 'aZ09')) $newlang = GETPOST('lang_id', 'aZ09');
-				if ($conf->global->MAIN_MULTILANGS && empty($newlang))	$newlang = $object->thirdparty->default_lang;
+				if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang) && GETPOST('lang_id', 'aZ09')) $newlang = GETPOST('lang_id', 'aZ09');
+				if (!empty($conf->global->MAIN_MULTILANGS) && empty($newlang))	$newlang = $object->thirdparty->default_lang;
 				if (!empty($newlang)) {
 					$outputlangs = new Translate("", $conf);
 					$outputlangs->setDefaultLang($newlang);
@@ -2281,13 +2301,16 @@ if ($action == 'create') {
 	// Date of proposal
 	print '<tr>';
 	print '<td>';
-	print '<table class="nobordernopadding" width="100%"><tr><td>';
-	print $langs->trans('DatePropal');
-	print '</td>';
-	if ($action != 'editdate' && $usercancreate && $caneditfield) {
-		print '<td class="right"><a class="editfielda" href="'.$_SERVER["PHP_SELF"].'?action=editdate&token='.newToken().'&id='.$object->id.'">'.img_edit($langs->trans('SetDate'), 1).'</a></td>';
-	}
-	print '</tr></table>';
+	// print '<table class="nobordernopadding" width="100%"><tr><td>';
+	// print $langs->trans('DatePropal');
+	// print '</td>';
+	// if ($action != 'editdate' && $usercancreate && $caneditfield) {
+	// 	print '<td class="right"><a class="editfielda" href="'.$_SERVER["PHP_SELF"].'?action=editdate&token='.newToken().'&id='.$object->id.'">'.img_edit($langs->trans('SetDate'), 1).'</a></td>';
+	// }
+
+	// print '</tr></table>';
+	$editenable = $usercancreate && $caneditfield && $object->statut == Propal::STATUS_DRAFT;
+	print $form->editfieldkey("DatePropal", 'date', '', $object, $editenable);
 	print '</td><td class="valuefield">';
 	if ($action == 'editdate' && $usercancreate && $caneditfield) {
 		print '<form name="editdate" action="'.$_SERVER["PHP_SELF"].'?id='.$object->id.'" method="post">';
diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index d0524ec895f..e2b128f8cd0 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -384,7 +384,7 @@ class Propal extends CommonObject
 		$this->socid = $socid;
 		$this->id = $propalid;
 
-		$this->duree_validite = ((int) $conf->global->PROPALE_VALIDITY_DURATION);
+		$this->duree_validite = getDolGlobalInt('PROPALE_VALIDITY_DURATION', 0);
 	}
 
 
diff --git a/htdocs/langs/en_US/mrp.lang b/htdocs/langs/en_US/mrp.lang
index 7f29b774b29..9e1c8bb64ce 100644
--- a/htdocs/langs/en_US/mrp.lang
+++ b/htdocs/langs/en_US/mrp.lang
@@ -112,3 +112,4 @@ MOAndLines=Manufacturing Orders and lines
 MoChildGenerate=Generate Child Mo
 ParentMo=MO Parent
 MOChild=MO Child
+BomCantAddChildBom=The nomenclature %s is already present in the tree leading to the nomenclature %s
diff --git a/htdocs/langs/fr_FR/mrp.lang b/htdocs/langs/fr_FR/mrp.lang
index e65244b584f..709ff68b963 100644
--- a/htdocs/langs/fr_FR/mrp.lang
+++ b/htdocs/langs/fr_FR/mrp.lang
@@ -112,3 +112,4 @@ MOAndLines=Ordres de fabrication et lignes
 MoChildGenerate=Generate Child Mo
 ParentMo=MO Parent
 MOChild=MO Child
+BomCantAddChildBom=La nomenclature %s est déjà présente dans l'arborescence qui mène à la nomenclature %s