diff --git a/Admin/Install/Interfaces/DatabaseExchanger/ExchangeTrait.php b/Admin/Install/Interfaces/DatabaseExchanger/ExchangeTrait.php
index 50c9c91..2ca9431 100755
--- a/Admin/Install/Interfaces/DatabaseExchanger/ExchangeTrait.php
+++ b/Admin/Install/Interfaces/DatabaseExchanger/ExchangeTrait.php
@@ -41,8 +41,11 @@ trait ExchangeTrait
      */
     public function exchangeFromRequest(RequestAbstract $request) : array
     {
-        /** @var \Modules\Exchange\Models\ExhcangeSetting $setting */
-        $setting     = ExchangeSettingMapper::get()->where('id', (int) $request->getData('setting'))->execute();
+        /** @var \Modules\Exchange\Models\ExchangeSetting $setting */
+        $setting = ExchangeSettingMapper::get()
+            ->where('id', (int) $request->getData('setting'))
+            ->execute();
+
         $settingData = $setting->getData();
 
         $lang             = [];
@@ -73,7 +76,8 @@ trait ExchangeTrait
             ]
         );
 
-        foreach (($setting['relation'] ?? []) as $table) {
+        $relations = $setting->getRelations();
+        foreach ($relations as $table) {
             $importQuery = new Builder($importConnection);
             $importQuery->from($table['src']);
 
diff --git a/Admin/Install/db.json b/Admin/Install/db.json
index 96bc410..3fa3a01 100755
--- a/Admin/Install/db.json
+++ b/Admin/Install/db.json
@@ -75,6 +75,11 @@
                 "type": "TEXT",
                 "null": false
             },
+            "exchange_settings_relations": {
+                "name": "exchange_settings_relations",
+                "type": "TEXT",
+                "null": false
+            },
             "exchange_settings_job": {
                 "name": "exchange_settings_job",
                 "type": "INT",
diff --git a/Models/ExchangeSetting.php b/Models/ExchangeSetting.php
index 88ed4ae..35b91b6 100755
--- a/Models/ExchangeSetting.php
+++ b/Models/ExchangeSetting.php
@@ -42,6 +42,14 @@ class ExchangeSetting implements \JsonSerializable
      */
     public string $title = '';
 
+    /**
+     * Relation definitions between tables/columns.
+     *
+     * @var array
+     * @since 1.0.0
+     */
+    private array $relations = [];
+
     /**
      * Data.
      *
@@ -104,6 +112,32 @@ class ExchangeSetting implements \JsonSerializable
         return $this->id;
     }
 
+    /**
+     * Set relations
+     *
+     * @param array $relations Relations between tables/columsn
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function setRelations(array $relations) : void
+    {
+        $this->relations = $relations;
+    }
+
+    /**
+     * Get table/column relations
+     *
+     * @return array
+     *
+     * @since 1.0.0
+     */
+    public function getRelations() : array
+    {
+        return $this->relations;
+    }
+
     /**
      * {@inheritdoc}
      */
diff --git a/Models/ExchangeSettingMapper.php b/Models/ExchangeSettingMapper.php
index 98e982d..6f9218f 100755
--- a/Models/ExchangeSettingMapper.php
+++ b/Models/ExchangeSettingMapper.php
@@ -36,6 +36,7 @@ final class ExchangeSettingMapper extends DataMapperFactory
         'exchange_settings_id'         => ['name' => 'exchange_settings_id',         'type' => 'int',               'internal' => 'id'],
         'exchange_settings_title'      => ['name' => 'exchange_settings_title',     'type' => 'string',              'internal' => 'title'],
         'exchange_settings_data'       => ['name' => 'exchange_settings_data',    'type' => 'Json',            'internal' => 'data'],
+        'exchange_settings_relations'       => ['name' => 'exchange_settings_relations',    'type' => 'Json',            'internal' => 'relations'],
         'exchange_settings_job'        => ['name' => 'exchange_settings_job',   'type' => 'int',               'internal' => 'job'],
         'exchange_settings_exchange'   => ['name' => 'exchange_settings_exchange',   'type' => 'int',               'internal' => 'exchange'],
     ];
diff --git a/Models/InterfaceManager.php b/Models/InterfaceManager.php
index 1f0444a..ff45518 100755
--- a/Models/InterfaceManager.php
+++ b/Models/InterfaceManager.php
@@ -130,7 +130,7 @@ class InterfaceManager
     public function __construct(string $path = '')
     {
         $this->path      = $path;
-        $this->account   = new NullAccount();
+        $this->createdBy = new NullAccount();
         $this->createdAt = new \DateTimeImmutable();
         $this->source    = new NullCollection();
     }