diff --git a/backend/src/object/object.service.ts b/backend/src/object/object.service.ts
index 64957a2..9e96032 100644
--- a/backend/src/object/object.service.ts
+++ b/backend/src/object/object.service.ts
@@ -81,8 +81,10 @@ export class ObjectService {
       .where({ objectDefinitionId: obj.id })
       .orderBy('label', 'asc');
 
-    // Normalize all fields to ensure system fields are properly marked
-    const normalizedFields = fields.map((field: any) => this.normalizeField(field));
+    // Normalize all fields to ensure system fields are properly marked and add any missing system fields
+    const normalizedFields = this.addMissingSystemFields(
+      fields.map((field: any) => this.normalizeField(field)),
+    );
 
     // Get app information if object belongs to an app
     let app = null;
@@ -552,6 +554,12 @@ export class ObjectService {
       throw new NotFoundException(`Object ${objectApiName} not found`);
     }
 
+    // Normalize and enrich fields to include system fields for downstream permissions/search
+    const normalizedFields = this.addMissingSystemFields(
+      (objectDefModel.fields || []).map((field: any) => this.normalizeField(field)),
+    );
+    objectDefModel.fields = normalizedFields;
+
     await this.ensureModelRegistered(resolvedTenantId, objectApiName, objectDefModel);
 
     const boundModel = await this.modelService.getBoundModel(resolvedTenantId, objectApiName);
@@ -835,7 +843,10 @@ export class ObjectService {
       userId,
     );
 
-    const validFields = new Set(objectDefModel.fields?.map((field: any) => field.apiName));
+    const validFields = new Set([
+      ...(objectDefModel.fields?.map((field: any) => field.apiName) || []),
+      ...this.getSystemFieldNames(),
+    ]);
     this.applySearchFilters(query, filters, validFields);
 
     if (sort?.field && validFields.has(sort.field)) {
@@ -1343,15 +1354,35 @@ export class ObjectService {
   }
 
   private isSystemField(apiName: string): boolean {
-    return [
-      'id',
-      'ownerId',
-      'created_at',
-      'updated_at',
-      'createdAt',
-      'updatedAt',
-      'tenantId',
-    ].includes(apiName);
+    return this.getSystemFieldNames().includes(apiName);
+  }
+
+  private getSystemFieldNames(): string[] {
+    return ['id', 'ownerId', 'created_at', 'updated_at', 'createdAt', 'updatedAt', 'tenantId'];
+  }
+
+  private addMissingSystemFields(fields: any[]): any[] {
+    const existing = new Map((fields || []).map((field) => [field.apiName, field]));
+    const systemDefaults = [
+      { apiName: 'id', label: 'ID', type: 'STRING' },
+      { apiName: 'created_at', label: 'Created At', type: 'DATE_TIME' },
+      { apiName: 'updated_at', label: 'Updated At', type: 'DATE_TIME' },
+      { apiName: 'ownerId', label: 'Owner', type: 'LOOKUP', referenceObject: 'User' },
+    ];
+
+    const merged = [...fields];
+    for (const sysField of systemDefaults) {
+      if (!existing.has(sysField.apiName)) {
+        merged.push({
+          ...sysField,
+          isSystem: true,
+          isCustom: false,
+          isRequired: false,
+        });
+      }
+    }
+
+    return merged;
   }
 
   private isKeywordField(type: string | undefined): boolean {