diff --git a/application/Espo/Tools/EmailNotification/Processor.php b/application/Espo/Tools/EmailNotification/Processor.php
index a0bc1ccdf7..c73ed83d1c 100644
--- a/application/Espo/Tools/EmailNotification/Processor.php
+++ b/application/Espo/Tools/EmailNotification/Processor.php
@@ -315,6 +315,8 @@ class Processor
             return;
         }
 
+        $parent = null;
+
         $parentId = $note->get('parentId');
         $parentType = $note->get('parentType');
 
diff --git a/application/Espo/Tools/EntityManager/EntityManager.php b/application/Espo/Tools/EntityManager/EntityManager.php
index e52f5fec18..5ed72c5c89 100644
--- a/application/Espo/Tools/EntityManager/EntityManager.php
+++ b/application/Espo/Tools/EntityManager/EntityManager.php
@@ -806,6 +806,9 @@ class EntityManager
         $label = $params['label'];
         $labelForeign = $params['labelForeign'];
 
+        $relationName = null;
+        $dataRight = null;
+
         if ($linkType === 'manyToMany') {
             if (!empty($params['relationName'])) {
                 $relationName = $params['relationName'];
@@ -1410,9 +1413,9 @@ class EntityManager
             $this->language->set($entity, 'links', $link, $label);
         }
 
-        if ($linkType !== 'belongsToParent') {
-            $labelForeign = null;
+        $labelForeign = null;
 
+        if ($linkType !== 'belongsToParent') {
             if (isset($params['labelForeign'])) {
                 $labelForeign = $params['labelForeign'];
             }
diff --git a/application/Espo/Tools/Export/Processors/Xlsx.php b/application/Espo/Tools/Export/Processors/Xlsx.php
index 07a42cecd0..179354efca 100644
--- a/application/Espo/Tools/Export/Processors/Xlsx.php
+++ b/application/Espo/Tools/Export/Processors/Xlsx.php
@@ -360,6 +360,8 @@ class Xlsx implements Processor
             $foreignField = $name;
             $linkName = null;
 
+            $foreignScope = null;
+
             if (strpos($name, '_') !== false) {
                 list($linkName, $foreignField) = explode('_', $name);
 
diff --git a/application/Espo/Tools/Import/Import.php b/application/Espo/Tools/Import/Import.php
index 5bbd7d48ea..3bceebd4a4 100644
--- a/application/Espo/Tools/Import/Import.php
+++ b/application/Espo/Tools/Import/Import.php
@@ -380,8 +380,6 @@ class Import
 
     private function importRow(array $attributeList, array $row): ?stdClass
     {
-        $id = null;
-
         $params = $this->params;
 
         $action = $params->getAction() ?? self::DEFAULT_ACTION;
@@ -390,10 +388,10 @@ class Import
             return null;
         }
 
-        if (in_array($action, [Params::ACTION_CREATE_AND_UPDATE, Params::ACTION_UPDATE])) {
-            $updateByAttributeList = [];
-            $whereClause = [];
+        $updateByAttributeList = [];
+        $whereClause = [];
 
+        if (in_array($action, [Params::ACTION_CREATE_AND_UPDATE, Params::ACTION_UPDATE])) {
             $updateBy = $params->getUpdateBy();
 
             if (count($updateBy)) {
diff --git a/application/Espo/Tools/Notification/NoteHookProcessor.php b/application/Espo/Tools/Notification/NoteHookProcessor.php
index 6e90ab341f..a9bf3092b3 100644
--- a/application/Espo/Tools/Notification/NoteHookProcessor.php
+++ b/application/Espo/Tools/Notification/NoteHookProcessor.php
@@ -128,6 +128,9 @@ class NoteHookProcessor
         // This is correct.
         $skipAclCheck = !$note->isAclProcessed();
 
+        $teamIdList = null;
+        $userIdList = null;
+
         if (!$skipAclCheck) {
             $teamIdList = $note->getLinkMultipleIdList('teams');
             $userIdList = $note->getLinkMultipleIdList('users');
@@ -267,6 +270,8 @@ class NoteHookProcessor
             return;
         }
 
+        $notifyUserIdList = [];
+
         foreach ($targetTeamIdList as $teamId) {
             $team = $this->entityManager->getEntity(Team::ENTITY_TYPE, $teamId);