diff --git a/application/Espo/Core/Acl/DefaultAssignmentChecker.php b/application/Espo/Core/Acl/DefaultAssignmentChecker.php
index 231c7e0e2c..2e7ce7a34e 100644
--- a/application/Espo/Core/Acl/DefaultAssignmentChecker.php
+++ b/application/Espo/Core/Acl/DefaultAssignmentChecker.php
@@ -30,14 +30,11 @@
 namespace Espo\Core\Acl;
 
 use Espo\Core\ORM\Entity as CoreEntity;
-
 use Espo\Repositories\User as UserRepository;
-
 use Espo\ORM\Defs;
 use Espo\ORM\Entity;
 use Espo\ORM\EntityManager;
 use Espo\Entities\User;
-
 use Espo\Core\AclManager;
 
 /**
@@ -48,7 +45,6 @@ class DefaultAssignmentChecker implements AssignmentChecker
     protected const FIELD_ASSIGNED_USERS = 'assignedUsers';
     protected const FIELD_TEAMS = 'teams';
     protected const ATTR_ASSIGNED_USER_ID = 'assignedUserId';
-    protected const ATTR_TEAMS_IDS = 'teamsIds';
     protected const ATTR_ASSIGNED_USERS_IDS = 'assignedUsersIds';
 
     public function __construct(
@@ -141,7 +137,7 @@ class DefaultAssignmentChecker implements AssignmentChecker
             }
         }
         else if ($assignmentPermission === Table::LEVEL_TEAM) {
-            $teamIdList = $user->get(self::ATTR_TEAMS_IDS);
+            $teamIdList = $user->getTeamIdList();
 
             if (
                 !$this->getUserRepository()->checkBelongsToAnyOfTeams($assignedUserId, $teamIdList)
@@ -210,7 +206,6 @@ class DefaultAssignmentChecker implements AssignmentChecker
             return true;
         }
 
-        /** @var string[] $userTeamIdList */
         $userTeamIdList = $user->getLinkMultipleIdList(self::FIELD_TEAMS);
 
         foreach ($newIdList as $id) {
@@ -276,7 +271,8 @@ class DefaultAssignmentChecker implements AssignmentChecker
         $toProcess = false;
 
         if (!$entity->isNew()) {
-            $userIdList = $entity->getLinkMultipleIdList(self::FIELD_ASSIGNED_USERS);
+            // Might be on purpose.
+            $entity->getLinkMultipleIdList(self::FIELD_ASSIGNED_USERS);
 
             if ($entity->isAttributeChanged(self::ATTR_ASSIGNED_USERS_IDS)) {
                 $toProcess = true;
@@ -313,7 +309,6 @@ class DefaultAssignmentChecker implements AssignmentChecker
 
     private function isPermittedAssignedUsersLevelNo(User $user, CoreEntity $entity): bool
     {
-        /** @var string[] $userIdList */
         $userIdList = $entity->getLinkMultipleIdList(self::FIELD_ASSIGNED_USERS);
 
         $fetchedAssignedUserIdList = $entity->getFetched(self::ATTR_ASSIGNED_USERS_IDS);
@@ -333,12 +328,10 @@ class DefaultAssignmentChecker implements AssignmentChecker
 
     private function isPermittedAssignedUsersLevelTeam(User $user, CoreEntity $entity): bool
     {
-        /** @var string[] $userIdList */
         $userIdList = $entity->getLinkMultipleIdList(self::FIELD_ASSIGNED_USERS);
 
         $fetchedAssignedUserIdList = $entity->getFetched(self::ATTR_ASSIGNED_USERS_IDS);
 
-        /** @var string[] $teamIdList */
         $teamIdList = $user->getLinkMultipleIdList(self::FIELD_TEAMS);
 
         foreach ($userIdList as $userId) {