diff --git a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/display/components/RelationToOneFieldDisplay.tsx b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/display/components/RelationToOneFieldDisplay.tsx
index ee6d5c7df3..3dd320c683 100644
--- a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/display/components/RelationToOneFieldDisplay.tsx
+++ b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/display/components/RelationToOneFieldDisplay.tsx
@@ -1,16 +1,25 @@
 import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
 import { RecordChip } from '@/object-record/components/RecordChip';
 import { FieldContext } from '@/object-record/record-field/ui/contexts/FieldContext';
+import { ForbiddenFieldDisplay } from '@/object-record/record-field/ui/meta-types/display/components/ForbiddenFieldDisplay';
 import { useRelationToOneFieldDisplay } from '@/object-record/record-field/ui/meta-types/hooks/useRelationToOneFieldDisplay';
 import { useContext } from 'react';
 import { isDefined } from 'twenty-shared/utils';
 
 export const RelationToOneFieldDisplay = () => {
-  const { fieldValue, fieldDefinition, generateRecordChipData } =
-    useRelationToOneFieldDisplay();
+  const {
+    fieldValue,
+    fieldDefinition,
+    generateRecordChipData,
+    foreignKeyFieldValue,
+  } = useRelationToOneFieldDisplay();
 
   const { disableChipClick, triggerEvent } = useContext(FieldContext);
 
+  if (!isDefined(fieldValue) && isDefined(foreignKeyFieldValue)) {
+    return <ForbiddenFieldDisplay />;
+  }
+
   if (
     !isDefined(fieldValue) ||
     !isDefined(fieldDefinition?.metadata.relationObjectMetadataNameSingular)
diff --git a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/hooks/useRelationToOneFieldDisplay.ts b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/hooks/useRelationToOneFieldDisplay.ts
index 257ea7ce07..7956827c0d 100644
--- a/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/hooks/useRelationToOneFieldDisplay.ts
+++ b/packages/twenty-front/src/modules/object-record/record-field/ui/meta-types/hooks/useRelationToOneFieldDisplay.ts
@@ -11,6 +11,7 @@ import { generateDefaultRecordChipData } from '@/object-metadata/utils/generateD
 import { FieldContext } from '@/object-record/record-field/ui/contexts/FieldContext';
 import { assertFieldMetadata } from '@/object-record/record-field/ui/types/guards/assertFieldMetadata';
 import { isFieldRelation } from '@/object-record/record-field/ui/types/guards/isFieldRelation';
+import { getJoinColumnNameOrThrow } from '@/object-record/record-field/ui/utils/junction/getJoinColumnNameOrThrow';
 import { useRecordFieldValue } from '@/object-record/record-store/hooks/useRecordFieldValue';
 import { isDefined } from 'twenty-shared/utils';
 
@@ -41,6 +42,16 @@ export const useRelationToOneFieldDisplay = () => {
     fieldDefinition,
   );
 
+  const joinColumnName = getJoinColumnNameOrThrow(
+    fieldDefinition.metadata.settings,
+  );
+
+  const foreignKeyFieldValue = useRecordFieldValue<string | null | undefined>(
+    recordId,
+    joinColumnName,
+    { type: FieldMetadataType.UUID, metadata: { fieldName: joinColumnName } },
+  );
+
   const maxWidthForField =
     isDefined(button) && isDefined(maxWidth)
       ? maxWidth - FIELD_EDIT_BUTTON_WIDTH
@@ -69,6 +80,7 @@ export const useRelationToOneFieldDisplay = () => {
   return {
     fieldDefinition,
     fieldValue,
+    foreignKeyFieldValue,
     maxWidth: maxWidthForField,
     recordId,
     generateRecordChipData,
diff --git a/packages/twenty-front/src/modules/object-record/record-field/ui/utils/junction/getJoinColumnNameOrThrow.ts b/packages/twenty-front/src/modules/object-record/record-field/ui/utils/junction/getJoinColumnNameOrThrow.ts
new file mode 100644
index 0000000000..4326a3e4bd
--- /dev/null
+++ b/packages/twenty-front/src/modules/object-record/record-field/ui/utils/junction/getJoinColumnNameOrThrow.ts
@@ -0,0 +1,13 @@
+import { type FieldMetadataItem } from '@/object-metadata/types/FieldMetadataItem';
+import { getJoinColumnName } from '@/object-record/record-field/ui/utils/junction/getJoinColumnName';
+import { isDefined } from 'twenty-shared/utils';
+
+export const getJoinColumnNameOrThrow = (
+  settings: FieldMetadataItem['settings'],
+): string => {
+  const joinColumnName = getJoinColumnName(settings);
+  if (!isDefined(joinColumnName)) {
+    throw new Error('Join column name is not defined');
+  }
+  return joinColumnName;
+};
diff --git a/packages/twenty-front/src/modules/settings/data-model/fields/forms/morph-relation/components/SettingsDataModelFieldRelationFormCard.tsx b/packages/twenty-front/src/modules/settings/data-model/fields/forms/morph-relation/components/SettingsDataModelFieldRelationFormCard.tsx
index a7bff24f2c..15444f68e5 100644
--- a/packages/twenty-front/src/modules/settings/data-model/fields/forms/morph-relation/components/SettingsDataModelFieldRelationFormCard.tsx
+++ b/packages/twenty-front/src/modules/settings/data-model/fields/forms/morph-relation/components/SettingsDataModelFieldRelationFormCard.tsx
@@ -84,6 +84,7 @@ export const SettingsDataModelFieldRelationFormCard = ({
               type: FieldMetadataType.RELATION,
               settings: {
                 relationType,
+                joinColumnName: 'previewJoinColumnId',
               },
             }}
             shrink
@@ -107,6 +108,7 @@ export const SettingsDataModelFieldRelationFormCard = ({
               type: FieldMetadataType.RELATION,
               settings: {
                 relationType: oppositeRelationType,
+                joinColumnName: 'previewJoinColumnId',
               },
             }}
             shrink
diff --git a/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations-v2.helper.ts b/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations-v2.helper.ts
index 80601fc367..62a96925cf 100644
--- a/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations-v2.helper.ts
+++ b/packages/twenty-server/src/engine/api/graphql/graphql-query-runner/helpers/process-nested-relations-v2.helper.ts
@@ -417,9 +417,6 @@ export class ProcessNestedRelationsV2Helper {
           (rel) => rel[joinField] === item.id,
         );
       } else {
-        if (relationResults.length === 0) {
-          item[`${sourceFieldName}Id`] = null;
-        }
         item[sourceFieldName] =
           relationResults.find(
             (rel) => rel.id === item[`${sourceFieldName}Id`],