diff --git a/guides/plugins/plugins/framework/data-handling/add-complex-data-to-existing-entities.md b/guides/plugins/plugins/framework/data-handling/add-complex-data-to-existing-entities.md
index e9256fee7..1641dcd1e 100644
--- a/guides/plugins/plugins/framework/data-handling/add-complex-data-to-existing-entities.md
+++ b/guides/plugins/plugins/framework/data-handling/add-complex-data-to-existing-entities.md
@@ -325,4 +325,39 @@ After we've created our subscriber, we have to adjust our `services.xml` to regi
 
 ## Entity extension vs. Custom fields
 
-[Custom fields](../custom-field/add-custom-field) are by default configurable by the admin user in the Administration, and they mostly support scalar types, e.g. a text-field, a number field, or the likes. If you'd like to create associations between entities, you'll need to use an entity extension, just like we did here. Of course, you can also add scalar values without an association to an entity via an extension.
\ No newline at end of file
+[Custom fields](../custom-field/add-custom-field) are by default configurable by the admin user in the Administration, and they mostly support scalar types, e.g. a text-field, a number field, or the likes. If you'd like to create associations between entities, you'll need to use an entity extension, just like we did here. Of course, you can also add scalar values without an association to an entity via an extension.
+
+## Bulk entity extensions
+In case your project or plugin requires a lot of entity extensions, you can register also a `BulkEntityExtension` which allows to extend multiple entities at once:
+
+```php
+<?php
+
+namespace Examples;
+
+class MyBulkExtension extends BulkEntityExtension
+{
+    public function collect(): \Generator
+    {
+        yield 'product' => [
+            new FkField('main_category_id', 'mainCategoryId', CategoryDefinition::class),
+        ];
+
+        yield 'category' => [
+            new FkField('product_id', 'productId', ProductDefinition::class),
+            new ManyToOneAssociationField('product', 'product_id', ProductDefinition::class),
+        ];
+    }
+}
+```
+
+Each yield defines the entity name which should be extended and the array value defines the fields which should be added. In this example, the `product` and `category` entities got extended.
+
+In this case you also just have to register a single file inside your services.xml
+
+```
+<service id="Examples\MyBulkExtension">
+   <tag name="shopware.bulk.entity.extension"/>
+</service>
+```
+