diff --git a/htdocs/core/class/html.formother.class.php b/htdocs/core/class/html.formother.class.php
index 69525c0f13423..feeeed6baa601 100644
--- a/htdocs/core/class/html.formother.class.php
+++ b/htdocs/core/class/html.formother.class.php
@@ -382,15 +382,16 @@ public function select_categories($type, $selected = 0, $htmlname = 'search_cate
     /**
      *  Return select list for categories (to use in form search selectors)
      *
-     *  @param	string	$selected     	Preselected value
-     *  @param  string	$htmlname      	Name of combo list (example: 'search_sale')
-     *  @param  User	$user           Object user
-     *  @param	int		$showstatus		0=show user status only if status is disabled, 1=always show user status into label, -1=never show user status
-     *  @param	int		$showempty		1=show also an empty value
-     *  @param	string	$morecss		More CSS
-     *  @return string					Html combo list code
+     *  @param	string	$selected     		Preselected value
+     *  @param  string	$htmlname      		Name of combo list (example: 'search_sale')
+     *  @param  User	$user           	Object user
+     *  @param	int		$showstatus			0=show user status only if status is disabled, 1=always show user status into label, -1=never show user status
+     *  @param	int		$showempty			1=show also an empty value
+     *  @param	string	$morecss			More CSS
+     *  @param	int		$norepresentative	Show also an entry "Not categorized"
+     *  @return string						Html combo list code
      */
-    public function select_salesrepresentatives($selected, $htmlname, $user, $showstatus = 0, $showempty = 1, $morecss = '')
+    public function select_salesrepresentatives($selected, $htmlname, $user, $showstatus = 0, $showempty = 1, $morecss = '', $norepresentative = 0)
     {
         // phpcs:enable
         global $conf, $langs;
@@ -498,6 +499,13 @@ public function select_salesrepresentatives($selected, $htmlname, $user, $showst
         {
             dol_print_error($this->db);
         }
+
+        if ($norepresentative)
+        {
+        	$langs->load("companies");
+        	$out.='<option value="-2"'.($selected == -2 ? ' selected':'').'>- '.$langs->trans("NoSalesRepresentativeAffected").' -</option>';
+        }
+
         $out.='</select>';
 
         return $out;
diff --git a/htdocs/societe/list.php b/htdocs/societe/list.php
index 260c165064e89..eae5227c08700 100644
--- a/htdocs/societe/list.php
+++ b/htdocs/societe/list.php
@@ -1,6 +1,6 @@
 <?php
 /* Copyright (C) 2001-2004  Rodolphe Quiedeville    <rodolphe@quiedeville.org>
- * Copyright (C) 2004-2016  Laurent Destailleur     <eldy@users.sourceforge.net>
+ * Copyright (C) 2004-2019  Laurent Destailleur     <eldy@users.sourceforge.net>
  * Copyright (C) 2005-2019  Regis Houssin           <regis.houssin@inodbox.com>
  * Copyright (C) 2012       Marcos García           <marcosgdf@gmail.com>
  * Copyright (C) 2013-2015  Raphaël Doursenaud      <rdoursenaud@gpcsolutions.fr>
@@ -409,13 +409,15 @@
 if (! empty($search_categ_sup)) $sql.= ' LEFT JOIN '.MAIN_DB_PREFIX."categorie_fournisseur as cs ON s.rowid = cs.fk_soc"; // We'll need this table joined to the select in order to filter by categ
 $sql.= ' LEFT JOIN '.MAIN_DB_PREFIX."c_stcomm as st ON s.fk_stcomm = st.id";
 // We'll need this table joined to the select in order to filter by sale
-if ($search_sale || (!$user->rights->societe->client->voir && !$socid)) $sql.= ", ".MAIN_DB_PREFIX."societe_commerciaux as sc";
+if ($search_sale == -2) $sql.= " LEFT JOIN ".MAIN_DB_PREFIX."societe_commerciaux as sc ON sc.fk_soc = s.rowid";
+elseif ($search_sale || (!$user->rights->societe->client->voir && !$socid)) $sql.= ", ".MAIN_DB_PREFIX."societe_commerciaux as sc";
 $sql.= " WHERE s.entity IN (".getEntity('societe').")";
 if (! $user->rights->societe->client->voir && ! $socid)	$sql.= " AND s.rowid = sc.fk_soc AND sc.fk_user = " .$user->id;
 if ($socid)                $sql.= " AND s.rowid = ".$socid;
-if ($search_sale)          $sql.= " AND s.rowid = sc.fk_soc";        // Join for the needed table to filter by sale
+if ($search_sale != -2)    $sql.= " AND s.rowid = sc.fk_soc";        // Join for the needed table to filter by sale
 if (! $user->rights->fournisseur->lire) $sql.=" AND (s.fournisseur <> 1 OR s.client <> 0)";    // client=0, fournisseur=0 must be visible
-if ($search_sale)          $sql.= " AND sc.fk_user = ".$db->escape($search_sale);
+if ($search_sale == -2)    $sql.= " AND sc.fk_user IS NULL";
+elseif ($search_sale)          $sql.= " AND sc.fk_user = ".$db->escape($search_sale);
 if ($search_categ_cus > 0) $sql.= " AND cc.fk_categorie = ".$db->escape($search_categ_cus);
 if ($search_categ_sup > 0) $sql.= " AND cs.fk_categorie = ".$db->escape($search_categ_sup);
 if ($search_categ_cus == -2)   $sql.= " AND cc.fk_categorie IS NULL";
@@ -659,7 +661,7 @@
 {
  	$moreforfilter.='<div class="divsearchfield">';
  	$moreforfilter.=$langs->trans('SalesRepresentatives'). ': ';
-	$moreforfilter.=$formother->select_salesrepresentatives($search_sale, 'search_sale', $user, 0, 1, 'maxwidth300');
+	$moreforfilter.=$formother->select_salesrepresentatives($search_sale, 'search_sale', $user, 0, 1, 'maxwidth300', 1);
 	$moreforfilter.='</div>';
 }
 if ($moreforfilter)