diff --git a/ajax/output/getEntityData.php b/ajax/output/getEntityData.php
index f5295632d98cc4b9f926d28eff721861d1c4f1c4..f67ad9dd2e501ee8773d94c102ac74dad812ead2 100644
--- a/ajax/output/getEntityData.php
+++ b/ajax/output/getEntityData.php
@@ -13,13 +13,17 @@
 
 QUI::$Ajax->registerFunction(
     'package_quiqqer_erp_ajax_output_getEntityData',
-    function ($entityId, $entityType) {
+    function ($entityId, $entityType, $entityPlugin) {
         $OutputProvider = ERPOutput::getOutputProviderByEntityType(Orthos::clear($entityType));
 
         if (empty($OutputProvider)) {
             return false;
         }
 
+        if (empty($entityPlugin)) {
+            $entityPlugin = false;
+        }
+
         $hideSystemDefaultTemplate = false;
 
         try {
@@ -38,7 +42,7 @@ function ($entityId, $entityType) {
         }
 
         $Processes = new QUI\ERP\Processes();
-        $Entity = $Processes->getEntity($entityId);
+        $Entity = $Processes->getEntity($entityId, $entityPlugin);
 
         return [
             'email' => $OutputProvider::getEmailAddress(Orthos::clear($entityId)),
@@ -47,6 +51,6 @@ function ($entityId, $entityType) {
             'prefixedNumber' => $Entity->getPrefixedNumber()
         ];
     },
-    ['entityId', 'entityType'],
+    ['entityId', 'entityType', 'entityPlugin'],
     'Permission::checkAdminUser'
 );
diff --git a/bin/backend/controls/OutputDialog.js b/bin/backend/controls/OutputDialog.js
index 9e5af3e0dbc84bbdd3dc3dab684c06aea341011a..92885ed543b8a60bf062c93242f9d8b5b17dd571 100644
--- a/bin/backend/controls/OutputDialog.js
+++ b/bin/backend/controls/OutputDialog.js
@@ -48,6 +48,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
         options: {
             entityId: false,  // Clean entity ID WITHOUT prefix and suffix
             entityType: false,  // Entity type (e.g. "Invoice")
+            entityPlugin: false,
 
             comments: false,    // Comments as array [must be readble by package/quiqqer/erp/bin/backend/controls/Comments]
 
@@ -161,6 +162,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                         new OutputMailEditor({
                             entityId: self.getAttribute('entityId'),
                             entityType: self.getAttribute('entityType'),
+                            entityPlugin: self.getAttribute('entityPlugin'),
 
                             mailSubject: self.$Mail.subject,
                             mailContent: self.$Mail.content,
@@ -453,6 +455,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                     src: URL_OPT_DIR + 'quiqqer/erp/bin/output/backend/print.php?' + Object.toQueryString({
                         id: entityId,
                         t: self.getAttribute('entityType'),
+                        ep: self.getAttribute('entityPlugin'),
                         oid: self.getId(),
                         tpl: self.$Template.id,
                         tplpr: self.$Template.provider
@@ -510,6 +513,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                     src: URL_OPT_DIR + 'quiqqer/erp/bin/output/backend/download.php?' + Object.toQueryString({
                         id: entityId,
                         t: self.getAttribute('entityType'),
+                        ep: self.getAttribute('entityPlugin'),
                         oid: self.getId(),
                         tpl: self.$Template.id,
                         tplpr: self.$Template.provider
@@ -629,6 +633,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                     'package': 'quiqqer/erp',
                     entityId: self.getAttribute('entityId'),
                     entityType: self.getAttribute('entityType'),
+                    entityPlugin: self.getAttribute('entityPlugin'),
                     onError: reject
                 });
             });
@@ -646,6 +651,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                 QUIAjax.get('package_quiqqer_erp_ajax_output_getTemplates', resolve, {
                     'package': 'quiqqer/erp',
                     entityType: self.getAttribute('entityType'),
+                    entityPlugin: self.getAttribute('entityPlugin'),
                     onError: reject
                 });
             });
@@ -664,7 +670,8 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                     'package': 'quiqqer/erp',
                     entity: JSON.encode({
                         id: self.getAttribute('entityId'),
-                        type: self.getAttribute('entityType')
+                        type: self.getAttribute('entityType'),
+                        plugin: self.getAttribute('entityPlugin')
                     }),
                     template: JSON.encode(self.$Template),
                     onError: reject
@@ -686,6 +693,7 @@ define('package/quiqqer/erp/bin/backend/controls/OutputDialog', [
                     'package': 'quiqqer/erp',
                     entityId: self.getAttribute('entityId'),
                     entityType: self.getAttribute('entityType'),
+                    entityPlugin: self.getAttribute('entityPlugin'),
                     template: self.$Template.id,
                     templateProvider: self.$Template.provider,
                     mailSubject: self.$Mail.subject,
diff --git a/src/QUI/ERP/Processes.php b/src/QUI/ERP/Processes.php
index 4ca0154089f198dde2ff5ada2c287ed25490a894..8d3196dc685bd535a0a8b7ef92068437147e3dc1 100644
--- a/src/QUI/ERP/Processes.php
+++ b/src/QUI/ERP/Processes.php
@@ -66,7 +66,7 @@ public function getEntity($entityHash, $entityPlugin = false): ErpEntityInterfac
 
         if (
             ($entityPlugin === false || $entityPlugin === 'quiqqer/invoice')
-            && class_exists('QUI\ERP\Accounting\Invoice\Handle')
+            && class_exists('QUI\ERP\Accounting\Invoice\Handler')
         ) {
             try {
                 return QUI\ERP\Accounting\Invoice\Handler::getInstance()->getInvoiceByHash($entityHash);