diff --git a/htdocs/comm/propal/list.php b/htdocs/comm/propal/list.php
index ed86a61d7bd..2426abad9f4 100644
--- a/htdocs/comm/propal/list.php
+++ b/htdocs/comm/propal/list.php
@@ -16,6 +16,7 @@
  * Copyright (C) 2019-2021 Alexandre Spangaro		<aspangaro@open-dsi.fr>
  * Copyright (C) 2021	   Anthony Berton			<anthony.berton@bb2a.fr>
  * Copyright (C) 2021      Frédéric France			<frederic.france@netlogic.fr>
+ * Copyright (C) 2022      Josep Lluís Amador		<joseplluis@lliuretic.cat>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -610,7 +611,9 @@ $sql .= ' LEFT JOIN '.MAIN_DB_PREFIX.'user as u ON p.fk_user_author = u.rowid';
 $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."projet as pr ON pr.rowid = p.fk_projet";
 $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."c_availability as ava on (ava.rowid = p.fk_availability)";
 // We'll need this table joined to the select in order to filter by sale
-if ($search_sale > 0 || (empty($user->rights->societe->client->voir) && !$socid)) {
+if ($search_sale == -2) {
+	$sql .= " LEFT JOIN ".MAIN_DB_PREFIX."societe_commerciaux as sc ON (sc.fk_soc = p.fk_soc)";
+} elseif ($search_sale > 0 || (empty($user->rights->societe->client->voir) && !$socid)) {
 	$sql .= ", ".MAIN_DB_PREFIX."societe_commerciaux as sc";
 }
 if ($search_user > 0) {
@@ -746,7 +749,9 @@ if ($search_date_delivery_start) {
 if ($search_date_delivery_end) {
 	$sql .= " AND p.date_livraison <= '".$db->idate($search_date_delivery_end)."'";
 }
-if ($search_sale > 0) {
+if ($search_sale == -2) {
+	$sql .= " AND sc.fk_user IS NULL";
+} elseif ($search_sale > 0) {
 	$sql .= " AND s.rowid = sc.fk_soc AND sc.fk_user = ".((int) $search_sale);
 }
 if ($search_user > 0) {
@@ -1117,7 +1122,7 @@ if ($resql) {
 		$langs->load("commercial");
 		$moreforfilter .= '<div class="divsearchfield">';
 		$tmptitle = $langs->trans('ThirdPartiesOfSaleRepresentative');
-		$moreforfilter .= img_picto($tmptitle, 'user', 'class="pictofixedwidth"').$formother->select_salesrepresentatives($search_sale, 'search_sale', $user, 0, $tmptitle, 'maxwidth250 widthcentpercentminusx');
+		$moreforfilter .= img_picto($tmptitle, 'user', 'class="pictofixedwidth"').$formother->select_salesrepresentatives($search_sale, 'search_sale', $user, 0, $tmptitle, 'maxwidth250 widthcentpercentminusx', 1);
 		$moreforfilter .= '</div>';
 	}
 	// If the user can view prospects other than his'