diff --git a/CHANGELOG.md b/CHANGELOG.md
index c007fac..0ab89d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,13 +11,15 @@ before starting to add changes. Use example [placed in the end of the page](#exa
 
 ## [Unreleased]
 
+- Adding children information to Attachment SBSYS
+- os2forms_webform_maps translation page fix
+
 ## [6.0.0] 2026-09-30
 
 - [PR-346](https://github.com/OS2Forms/os2forms/pull/346)
   Drupal 11 compatibility.
 - [#355](https://github.com/OS2Forms/os2forms/issues/355)
   Children select elements warning fix.
-- os2forms_webform_maps translation page fix
 
 ## [5.1.0] 2026-06-03
 
diff --git a/modules/os2forms_nemid/src/Plugin/WebformElement/MitidChildElementBase.php b/modules/os2forms_nemid/src/Plugin/WebformElement/MitidChildElementBase.php
index fbdd7dc..79d78cc 100644
--- a/modules/os2forms_nemid/src/Plugin/WebformElement/MitidChildElementBase.php
+++ b/modules/os2forms_nemid/src/Plugin/WebformElement/MitidChildElementBase.php
@@ -12,7 +12,7 @@
  * @see \Drupal\webform\Plugin\WebformElementInterface
  * @see \Drupal\webform\Annotation\WebformElement
  */
-abstract class MitidChildElementBase extends WebformElementBase {
+abstract class MitidChildElementBase extends WebformElementBase implements NemidChildElementInterface {
 
   /**
    * {@inheritdoc}
diff --git a/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildElementInterface.php b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildElementInterface.php
new file mode 100644
index 0000000..967b3c7
--- /dev/null
+++ b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildElementInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Drupal\os2forms_nemid\Plugin\WebformElement;
+
+/**
+ * Marks child-related Webform elements that provide one submission value.
+ */
+interface NemidChildElementInterface {
+
+}
diff --git a/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenRadios.php b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenRadios.php
index 489de90..b220c8e 100644
--- a/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenRadios.php
+++ b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenRadios.php
@@ -20,7 +20,7 @@
  * @see \Drupal\os2forms_nemid\Plugin\NemidElementBase
  * @see \Drupal\os2forms_nemid\Element\NemidChildrenRadios
  */
-class NemidChildrenRadios extends Radios implements NemidElementPersonalInterface, NemidPrepopulateFieldInterface {
+class NemidChildrenRadios extends Radios implements NemidElementPersonalInterface, NemidPrepopulateFieldInterface, NemidChildElementInterface {
 
   /**
    * {@inheritdoc}
diff --git a/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenSelect.php b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenSelect.php
index b7d36b9..18b3144 100644
--- a/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenSelect.php
+++ b/modules/os2forms_nemid/src/Plugin/WebformElement/NemidChildrenSelect.php
@@ -20,7 +20,7 @@
  * @see \Drupal\os2forms_nemid\Plugin\NemidElementBase
  * @see \Drupal\os2forms_nemid\Element\NemidChildrenRadios
  */
-class NemidChildrenSelect extends Select implements NemidElementPersonalInterface, NemidPrepopulateFieldInterface {
+class NemidChildrenSelect extends Select implements NemidElementPersonalInterface, NemidPrepopulateFieldInterface, NemidChildElementInterface {
 
   /**
    * {@inheritdoc}
diff --git a/modules/os2forms_sbsys/src/Element/WebformAttachmentSbsysXml.php b/modules/os2forms_sbsys/src/Element/WebformAttachmentSbsysXml.php
index b5a9db6..6f5374c 100644
--- a/modules/os2forms_sbsys/src/Element/WebformAttachmentSbsysXml.php
+++ b/modules/os2forms_sbsys/src/Element/WebformAttachmentSbsysXml.php
@@ -271,6 +271,10 @@ protected static function getWebformElementsAsList(WebformSubmissionInterface $w
    *   Element configuration value
    */
   public static function getConfigurationValue($name, array $config, WebformSubmissionInterface $webform_submission) {
+    if (!isset($config[$name])) {
+      return '';
+    }
+
     if ($config[$name] == 'default_nemid_value') {
       return 'default_nemid_value';
     }
diff --git a/modules/os2forms_sbsys/src/Plugin/WebformElement/WebformAttachmentSbsysXml.php b/modules/os2forms_sbsys/src/Plugin/WebformElement/WebformAttachmentSbsysXml.php
index 4fde772..739ad56 100644
--- a/modules/os2forms_sbsys/src/Plugin/WebformElement/WebformAttachmentSbsysXml.php
+++ b/modules/os2forms_sbsys/src/Plugin/WebformElement/WebformAttachmentSbsysXml.php
@@ -5,6 +5,7 @@
 use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\os2forms\Plugin\WebformElement\WebformAttachmentXml;
+use Drupal\os2forms_nemid\Plugin\WebformElement\NemidChildElementInterface;
 use Drupal\os2forms_nemid\Plugin\WebformElement\NemidElementBase;
 use Drupal\webform\Plugin\WebformElement\DateBase;
 use Drupal\webform\Plugin\WebformElement\TextBase;
@@ -123,7 +124,11 @@ public function form(array $form, FormStateInterface $form_state) {
       }
 
       // Skipping if is of type we do not support.
-      if (!$elementInstance instanceof TextBase && !$elementInstance instanceof NemidElementBase && !$elementInstance instanceof DateBase && !$elementInstance instanceof WebformComputedBase) {
+      if (!$elementInstance instanceof TextBase
+        && !$elementInstance instanceof NemidElementBase
+        && !$elementInstance instanceof DateBase
+        && !$elementInstance instanceof WebformComputedBase
+        && !$elementInstance instanceof NemidChildElementInterface) {
         continue;
       }