From 653760e95e6c4c3709c9637a4066b3dc6def8586 Mon Sep 17 00:00:00 2001
From: Vincent Marmiesse <vincent.marmiesse@ph2m.com>
Date: Mon, 24 Jan 2022 16:23:47 +0100
Subject: [PATCH] Add Add/Update behavior and change default behavior

---
 Model/Config/Source/Behavior.php | 5 +++--
 etc/config.xml                   | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/Model/Config/Source/Behavior.php b/Model/Config/Source/Behavior.php
index f199d0c..7eb73df 100644
--- a/Model/Config/Source/Behavior.php
+++ b/Model/Config/Source/Behavior.php
@@ -23,8 +23,9 @@ public function toOptionArray()
     {
         if (!$this->_options) {
             $this->_options = [
-                ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_APPEND, 'label' => __('Add/Update')], 
-                ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_REPLACE, 'label' => __('Replace')], 
+                ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_APPEND, 'label' => __('Append')],
+                ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_ADD_UPDATE, 'label' => __('Add/Update')],
+                ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_REPLACE, 'label' => __('Replace')],
                 ['value' => \Magento\ImportExport\Model\Import::BEHAVIOR_DELETE, 'label' => __('Delete')], 
             ];
         }
diff --git a/etc/config.xml b/etc/config.xml
index a540cd3..c45c287 100644
--- a/etc/config.xml
+++ b/etc/config.xml
@@ -10,7 +10,7 @@
         <fastsimpleimport>
             <default>
                 <ignore_duplicates>0</ignore_duplicates>
-                <behavior>append</behavior>
+                <behavior>add_update</behavior>
                 <entity>catalog_product</entity>
                 <validation_strategy>validation-stop-on-errors</validation_strategy>
                 <allowed_error_count>10</allowed_error_count>