diff --git a/htdocs/cron/card.php b/htdocs/cron/card.php
index 7ccc70c18e7..6fd71669d9c 100644
--- a/htdocs/cron/card.php
+++ b/htdocs/cron/card.php
@@ -768,7 +768,7 @@ if (($action == "create") || ($action == "edit")) {
 	if (!$user->rights->cron->create) {
 		print '<a class="butActionRefused classfortooltip" href="#" title="'.dol_escape_htmltag($langs->transnoentitiesnoconv("NotEnoughPermissions")).'">'.$langs->trans("CronStatusActiveBtn").'/'.$langs->trans("CronStatusInactiveBtn").'</a>';
 	} else {
-		print '<a class="butAction" href="'.$_SERVER['PHP_SELF'].'?action=clone&token='.newToken().'&id='.$object->id.'">'.$langs->trans("Clone").'</a>';
+		print '<a class="butAction" href="'.$_SERVER['PHP_SELF'].'?action=clone&token='.newToken().'&id='.$object->id.'">'.$langs->trans("ToClone").'</a>';
 
 		if (empty($object->status)) {
 			print '<a class="butAction" href="'.$_SERVER['PHP_SELF'].'?action=activate&token='.newToken().'&id='.$object->id.'">'.$langs->trans("CronStatusActiveBtn").'</a>';
diff --git a/htdocs/cron/class/cronjob.class.php b/htdocs/cron/class/cronjob.class.php
index 8cf68a57228..744ac1834aa 100644
--- a/htdocs/cron/class/cronjob.class.php
+++ b/htdocs/cron/class/cronjob.class.php
@@ -869,7 +869,7 @@ class Cronjob extends CommonObject
 
 		// Clear fields
 		$object->status = self::STATUS_DISABLED;
-		$object->label = $langs->trans("CopyOf").' '.$object->label;
+		$object->label = $langs->trans("CopyOf").' '.$langs->trans($object->label);
 
 		// Create clone
 		$object->context['createfromclone'] = 'createfromclone';
diff --git a/htdocs/cron/list.php b/htdocs/cron/list.php
index 779671d4044..e93434f725a 100644
--- a/htdocs/cron/list.php
+++ b/htdocs/cron/list.php
@@ -33,10 +33,6 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/date.lib.php';
 // Load translation files required by the page
 $langs->loadLangs(array("admin", "cron", "bills", "members"));
 
-if (!$user->rights->cron->read) {
-	accessforbidden();
-}
-
 $action = GETPOST('action', 'aZ09');
 $massaction = GETPOST('massaction', 'alpha'); // The bulk action (combo box choice into lists)
 $confirm = GETPOST('confirm', 'alpha');
@@ -87,6 +83,15 @@ $extrafields->fetch_name_optionals_label($object->table_element);
 
 $search_array_options = $extrafields->getOptionalsFromPost($object->table_element, '', 'search_');
 
+// Security
+if (!$user->rights->cron->read) {
+	accessforbidden();
+}
+
+$permissiontoread = $user->rights->cron->read;
+$permissiontoadd = $user->rights->cron->create ? $user->rights->cron->create : $user->rights->cron->write;
+$permissiontodelete = $user->rights->cron->delete;
+$permissiontoexecute = $user->rights->cron->execute;
 
 
 /*
@@ -129,7 +134,7 @@ if (empty($reshook)) {
 	}
 
 	// Delete jobs
-	if ($action == 'confirm_delete' && $confirm == "yes" && $user->rights->cron->delete) {
+	if ($action == 'confirm_delete' && $confirm == "yes" && $permissiontodelete) {
 		//Delete cron task
 		$object = new Cronjob($db);
 		$object->id = $id;
@@ -141,7 +146,7 @@ if (empty($reshook)) {
 	}
 
 	// Execute jobs
-	if ($action == 'confirm_execute' && $confirm == "yes" && $user->rights->cron->execute) {
+	if ($action == 'confirm_execute' && $confirm == "yes" && $permissiontoexecute) {
 		if (!empty($conf->global->CRON_KEY) && $conf->global->CRON_KEY != $securitykey) {
 			setEventMessages('Security key '.$securitykey.' is wrong', null, 'errors');
 			$action = '';
@@ -196,9 +201,6 @@ if (empty($reshook)) {
 	// Mass actions
 	$objectclass = 'CronJob';
 	$objectlabel = 'CronJob';
-	$permissiontoread = $user->rights->cron->read;
-	$permissiontoadd = $user->rights->cron->create ? $user->rights->cron->create : $user->rights->cron->write;
-	$permissiontodelete = $user->rights->cron->delete;
 	$uploaddir = $conf->cron->dir_output;
 	include DOL_DOCUMENT_ROOT.'/core/actions_massactions.inc.php';
 	if ($massaction && $permissiontoadd) {
@@ -353,7 +355,7 @@ if ($action == 'execute') {
 	print $form->formconfirm($_SERVER['PHP_SELF']."?id=".$id.'&securitykey='.$securitykey.$param, $langs->trans("CronExecute"), $langs->trans("CronConfirmExecute"), "confirm_execute", '', '', 1);
 }
 
-if ($action == 'delete') {
+if ($action == 'delete' && empty($toselect)) {	// Used when we make a delete on 1 line (not used for mass delete)
 	print $form->formconfirm($_SERVER['PHP_SELF']."?id=".$id.$param, $langs->trans("CronDelete"), $langs->trans("CronConfirmDelete"), "confirm_delete", '', '', 1);
 }
 
@@ -386,7 +388,6 @@ if ($optioncss != '') {
 }
 print '<input type="hidden" name="token" value="'.newToken().'">';
 print '<input type="hidden" name="formfilteraction" id="formfilteraction" value="list">';
-print '<input type="hidden" name="action" value="list">';
 print '<input type="hidden" name="sortfield" value="'.$sortfield.'">';
 print '<input type="hidden" name="sortorder" value="'.$sortorder.'">';
 print '<input type="hidden" name="page" value="'.$page.'">';
diff --git a/htdocs/install/mysql/migration/15.0.0-16.0.0.sql b/htdocs/install/mysql/migration/15.0.0-16.0.0.sql
index 35bf589b2f0..77e18118d4f 100644
--- a/htdocs/install/mysql/migration/15.0.0-16.0.0.sql
+++ b/htdocs/install/mysql/migration/15.0.0-16.0.0.sql
@@ -650,3 +650,5 @@ ALTER TABLE llx_prelevement_facture_demande MODIFY COLUMN ext_payment_id varchar
 
 INSERT INTO llx_accounting_system (fk_country, pcg_version, label, active) VALUES (140, 'PCN2020-LUXEMBURG', 'Plan comptable normalisé 2020 Luxembourgeois', 1);
 
+ALTER TABLE llx_cronjob ADD UNIQUE INDEX uk_cronjob (label, entity);
+
diff --git a/htdocs/install/mysql/tables/llx_cronjob.key.sql b/htdocs/install/mysql/tables/llx_cronjob.key.sql
index d0fac214ba0..a1d7587e217 100644
--- a/htdocs/install/mysql/tables/llx_cronjob.key.sql
+++ b/htdocs/install/mysql/tables/llx_cronjob.key.sql
@@ -21,3 +21,5 @@ ALTER TABLE llx_cronjob ADD INDEX idx_cronjob_datelastrun (datelastrun);
 ALTER TABLE llx_cronjob ADD INDEX idx_cronjob_datenextrun (datenextrun);
 ALTER TABLE llx_cronjob ADD INDEX idx_cronjob_datestart (datestart);
 ALTER TABLE llx_cronjob ADD INDEX idx_cronjob_dateend (dateend);
+
+ALTER TABLE llx_cronjob ADD UNIQUE INDEX uk_cronjob (label, entity);