diff --git a/application/Espo/Core/FieldProcessing/Stars/StarLoader.php b/application/Espo/Core/FieldProcessing/Stars/StarLoader.php
index 9cbf418aed..9cfef36f58 100644
--- a/application/Espo/Core/FieldProcessing/Stars/StarLoader.php
+++ b/application/Espo/Core/FieldProcessing/Stars/StarLoader.php
@@ -31,6 +31,7 @@ namespace Espo\Core\FieldProcessing\Stars;
 
 use Espo\Core\FieldProcessing\Loader;
 use Espo\Core\FieldProcessing\Loader\Params;
+use Espo\Core\Name\Field;
 use Espo\Entities\User;
 use Espo\ORM\Entity;
 use Espo\Tools\Stars\StarService;
@@ -48,12 +49,12 @@ class StarLoader implements Loader
     public function process(Entity $entity, Params $params): void
     {
         if (
-            !$entity->hasAttribute('isStarred') ||
+            !$entity->hasAttribute(Field::IS_STARRED) ||
             !$this->service->isEnabled($entity->getEntityType())
         ) {
             return;
         }
 
-        $entity->set('isStarred', $this->service->isStarred($entity, $this->user));
+        $entity->set(Field::IS_STARRED, $this->service->isStarred($entity, $this->user));
     }
 }
diff --git a/application/Espo/Core/FieldProcessing/Stream/FollowersLoader.php b/application/Espo/Core/FieldProcessing/Stream/FollowersLoader.php
index 5e3bd9dba8..1437f1c092 100644
--- a/application/Espo/Core/FieldProcessing/Stream/FollowersLoader.php
+++ b/application/Espo/Core/FieldProcessing/Stream/FollowersLoader.php
@@ -29,6 +29,7 @@
 
 namespace Espo\Core\FieldProcessing\Stream;
 
+use Espo\Core\Name\Field;
 use Espo\ORM\Entity;
 use Espo\Core\Acl;
 use Espo\Core\FieldProcessing\Loader as LoaderInterface;
@@ -61,13 +62,13 @@ class FollowersLoader implements LoaderInterface
 
     public function processIsFollowed(Entity $entity): void
     {
-        if (!$entity->hasAttribute('isFollowed')) {
+        if (!$entity->hasAttribute(Field::IS_FOLLOWED)) {
             return;
         }
 
         $isFollowed = $this->streamService->checkIsFollowed($entity);
 
-        $entity->set('isFollowed', $isFollowed);
+        $entity->set(Field::IS_FOLLOWED, $isFollowed);
     }
 
     public function processFollowers(Entity $entity): void
@@ -88,7 +89,7 @@ class FollowersLoader implements LoaderInterface
 
         $data = $this->streamService->getEntityFollowers($entity, 0, $limit);
 
-        $entity->set('followersIds', $data['idList']);
-        $entity->set('followersNames', $data['nameMap']);
+        $entity->set(Field::FOLLOWERS . 'Ids', $data['idList']);
+        $entity->set(Field::FOLLOWERS . 'Names', $data['nameMap']);
     }
 }
diff --git a/application/Espo/Core/Name/Field.php b/application/Espo/Core/Name/Field.php
index d9ce53b9fc..40828b10a6 100644
--- a/application/Espo/Core/Name/Field.php
+++ b/application/Espo/Core/Name/Field.php
@@ -40,4 +40,7 @@ class Field
     public const COLLABORATORS = 'collaborators';
     public const TEAMS = 'teams';
     public const PARENT = 'parent';
+    public const IS_FOLLOWED = 'isFollowed';
+    public const FOLLOWERS = 'followers';
+    public const IS_STARRED = 'isStarred';
 }
diff --git a/application/Espo/Core/Select/Applier/AdditionalAppliers/IsStarred.php b/application/Espo/Core/Select/Applier/AdditionalAppliers/IsStarred.php
index 139fb1a933..a4d1ff872d 100644
--- a/application/Espo/Core/Select/Applier/AdditionalAppliers/IsStarred.php
+++ b/application/Espo/Core/Select/Applier/AdditionalAppliers/IsStarred.php
@@ -29,6 +29,7 @@
 
 namespace Espo\Core\Select\Applier\AdditionalAppliers;
 
+use Espo\Core\Name\Field;
 use Espo\Core\Select\Applier\AdditionalApplier;
 use Espo\Core\Select\SearchParams;
 use Espo\Core\Utils\Metadata;
@@ -55,7 +56,7 @@ class IsStarred implements AdditionalApplier
         }
 
         $queryBuilder
-            ->select(Expr::isNotNull(Expr::column('starSubscription.id')), 'isStarred')
+            ->select(Expr::isNotNull(Expr::column('starSubscription.id')), Field::IS_STARRED)
             ->leftJoin(StarSubscription::ENTITY_TYPE, 'starSubscription', [
                 'userId' => $this->user->getId(),
                 'entityType' => $this->entityType,
diff --git a/application/Espo/Core/Utils/Database/Orm/Converter.php b/application/Espo/Core/Utils/Database/Orm/Converter.php
index 126cfb78a3..843c53ad3a 100644
--- a/application/Espo/Core/Utils/Database/Orm/Converter.php
+++ b/application/Espo/Core/Utils/Database/Orm/Converter.php
@@ -31,6 +31,7 @@ namespace Espo\Core\Utils\Database\Orm;
 
 use Doctrine\DBAL\Types\Types;
 use Espo\Core\InjectableFactory;
+use Espo\Core\Name\Field;
 use Espo\Core\ORM\Defs\AttributeParam;
 use Espo\Core\ORM\Type\FieldType;
 use Espo\Core\Utils\Database\ConfigDataProvider;
@@ -498,20 +499,20 @@ class Converter
         $scopeDefs = $this->metadata->get(['scopes', $entityType]) ?? [];
 
         if ($scopeDefs['stream'] ?? false) {
-            if (!isset($entityMetadata['fields']['isFollowed'])) {
-                $ormMetadata[$entityType]['attributes']['isFollowed'] = [
+            if (!isset($entityMetadata['fields'][Field::IS_FOLLOWED])) {
+                $ormMetadata[$entityType]['attributes'][Field::IS_FOLLOWED] = [
                     'type' => Entity::BOOL,
                     'notStorable' => true,
                     AttributeParam::NOT_EXPORTABLE => true,
                 ];
 
-                $ormMetadata[$entityType]['attributes']['followersIds'] = [
+                $ormMetadata[$entityType]['attributes'][Field::FOLLOWERS . 'Ids'] = [
                     'type' => Entity::JSON_ARRAY,
                     'notStorable' => true,
                     AttributeParam::NOT_EXPORTABLE => true,
                 ];
 
-                $ormMetadata[$entityType]['attributes']['followersNames'] = [
+                $ormMetadata[$entityType]['attributes'][Field::FOLLOWERS . 'Names'] = [
                     'type' => Entity::JSON_OBJECT,
                     'notStorable' => true,
                     AttributeParam::NOT_EXPORTABLE => true,
@@ -521,8 +522,8 @@ class Converter
 
         // @todo Refactor.
         if ($scopeDefs['stars'] ?? false) {
-            if (!isset($entityMetadata['fields']['isStarred'])) {
-                $ormMetadata[$entityType]['attributes']['isStarred'] = [
+            if (!isset($entityMetadata['fields'][Field::IS_STARRED])) {
+                $ormMetadata[$entityType]['attributes'][Field::IS_STARRED] = [
                     'type' => Entity::BOOL,
                     'notStorable' => true,
                     AttributeParam::NOT_EXPORTABLE => true,
diff --git a/application/Espo/Core/Webhook/Manager.php b/application/Espo/Core/Webhook/Manager.php
index f37fe3bda8..08078c419a 100644
--- a/application/Espo/Core/Webhook/Manager.php
+++ b/application/Espo/Core/Webhook/Manager.php
@@ -50,7 +50,7 @@ class Manager
 
     /** @var string[] */
     protected $skipAttributeList = [
-        'isFollowed',
+        Field::IS_FOLLOWED,
         Field::MODIFIED_AT,
         Field::MODIFIED_BY,
     ];
diff --git a/application/Espo/Tools/EntityManager/NameUtil.php b/application/Espo/Tools/EntityManager/NameUtil.php
index 5e655282c3..7a30f97c8a 100644
--- a/application/Espo/Tools/EntityManager/NameUtil.php
+++ b/application/Espo/Tools/EntityManager/NameUtil.php
@@ -29,6 +29,7 @@
 
 namespace Espo\Tools\EntityManager;
 
+use Espo\Core\Name\Field;
 use Espo\Core\Utils\Config;
 use Espo\Core\Utils\Metadata;
 use Espo\Core\Utils\Route;
@@ -136,16 +137,17 @@ class NameUtil
         'deleted',
         'deleteId',
         'skipDuplicateCheck',
-        'isFollowed',
-        'isStarred',
         'versionNumber',
         'null',
         'false',
         'true',
-        'teams',
-        'assignedUser',
-        'assignedUsers',
-        'collaborators',
+        Field::IS_STARRED,
+        Field::IS_FOLLOWED,
+        Field::FOLLOWERS,
+        Field::TEAMS,
+        Field::ASSIGNED_USER,
+        Field::ASSIGNED_USERS,
+        Field::COLLABORATORS,
     ];
 
     /**
@@ -155,7 +157,6 @@ class NameUtil
         'posts',
         'stream',
         'subscription',
-        'followers',
         'starSubscription',
         'action',
         'null',
@@ -163,10 +164,11 @@ class NameUtil
         'true',
         'layout',
         'system',
-        'teams',
-        'assignedUser',
-        'assignedUsers',
-        'collaborators',
+        Field::FOLLOWERS,
+        Field::TEAMS,
+        Field::ASSIGNED_USER,
+        Field::ASSIGNED_USERS,
+        Field::COLLABORATORS,
     ];
 
     /**
diff --git a/application/Espo/Tools/Stream/HookProcessor.php b/application/Espo/Tools/Stream/HookProcessor.php
index a136f83bbe..7507f88486 100644
--- a/application/Espo/Tools/Stream/HookProcessor.php
+++ b/application/Espo/Tools/Stream/HookProcessor.php
@@ -389,7 +389,7 @@ class HookProcessor
         }
 
         if (in_array($this->user->getId(), $userIdList)) {
-            $entity->set('isFollowed', true);
+            $entity->set(Field::IS_FOLLOWED, true);
         }
 
         $autofollowUserIdList = $this->getAutofollowUserIdList($entity->getEntityType(), $userIdList);
@@ -465,7 +465,7 @@ class HookProcessor
             $this->service->followEntity($entity, $userId);
 
             if ($this->user->getId() === $userId) {
-                $entity->set('isFollowed', true);
+                $entity->set(Field::IS_FOLLOWED, true);
             }
         }
     }
@@ -487,7 +487,7 @@ class HookProcessor
         $this->service->noteAssign($entity, $options);
 
         if ($this->user->getId() === $assignedUserId) {
-            $entity->set('isFollowed', true);
+            $entity->set(Field::IS_FOLLOWED, true);
         }
     }
 
@@ -508,7 +508,7 @@ class HookProcessor
         $this->service->noteAssign($entity, $options);
 
         if (in_array($this->user->getId(), $userIds)) {
-            $entity->set('isFollowed', true);
+            $entity->set(Field::IS_FOLLOWED, true);
         }
     }