diff --git a/application/Espo/Core/Formula/Functions/RecordGroup/FindRelatedOneType.php b/application/Espo/Core/Formula/Functions/RecordGroup/FindRelatedOneType.php
index 1dc268236f..dda25ad6db 100644
--- a/application/Espo/Core/Formula/Functions/RecordGroup/FindRelatedOneType.php
+++ b/application/Espo/Core/Formula/Functions/RecordGroup/FindRelatedOneType.php
@@ -80,6 +80,18 @@ class FindRelatedOneType extends \Espo\Core\Formula\Functions\Base
 
         $metadata = $this->getInjection('metadata');
 
+        $relationType = $entity->getRelationParam($link, 'type');
+
+        if (in_array($relationType, ['belongsTo', 'hasOne', 'belongsToParent'])) {
+            $relatedEntity = $entityManager->getRepository($entityType)->findRelated($entity, $link, [
+                'select' => ['id'],
+            ]);
+            if (!$relatedEntity) {
+                return null;
+            }
+            return $relatedEntity->id;
+        }
+
         if (!$orderBy) {
             $orderBy = $metadata->get(['entityDefs', $entityType, 'collection', 'orderBy']);
             if (is_null($order)) {
@@ -89,8 +101,6 @@ class FindRelatedOneType extends \Espo\Core\Formula\Functions\Base
             $order = $order ?? 'asc';
         }
 
-        $relationType = $entity->getRelationParam($link, 'type');
-
         $foreignEntityType = $entity->getRelationParam($link, 'entity');
         if (!$foreignEntityType) throw new Error("Formula record\\findRelatedOne: Bad or not supported link '{$link}'.");
 
@@ -100,7 +110,6 @@ class FindRelatedOneType extends \Espo\Core\Formula\Functions\Base
         $selectManager = $this->getInjection('selectManagerFactory')->create($foreignEntityType);
         $selectParams = $selectManager->getEmptySelectParams();
 
-
         if ($relationType === 'hasChildren') {
             $selectParams['whereClause'][] = [$foreignLink . 'Id' => $entity->id];
             $selectParams['whereClause'][] = [$foreignLink . 'Type' => $entity->getEntityType()];
diff --git a/tests/integration/Espo/Core/Formula/FormulaTest.php b/tests/integration/Espo/Core/Formula/FormulaTest.php
index 00da752dd8..ec75dcd8d7 100644
--- a/tests/integration/Espo/Core/Formula/FormulaTest.php
+++ b/tests/integration/Espo/Core/Formula/FormulaTest.php
@@ -313,6 +313,23 @@ class FormulaTest extends \tests\integration\Core\BaseTestCase
         $this->assertEquals($c2->id, $result);
     }
 
+    public function testRecordFindRelatedOne1()
+    {
+        $fm = $this->getContainer()->get('formulaManager');
+        $em = $this->getContainer()->get('entityManager');
+
+        $a = $em->createEntity('Account', [
+        ]);
+
+        $o = $em->createEntity('Opportunity', [
+            'accountId' => $a->id,
+        ]);
+
+        $script = "record\\findRelatedOne('Opportunity', '".$o->id."', 'account')";
+        $result = $fm->run($script);
+        $this->assertEquals($a->id, $result);
+    }
+
     public function testRecordAttribute()
     {
         $fm = $this->getContainer()->get('formulaManager');