From 76c81148eaf527f756ed21297d904396b515d4ab Mon Sep 17 00:00:00 2001
From: gonzalo <gonzalo@ebizmarts.com>
Date: Thu, 24 Oct 2024 12:06:20 -0300
Subject: [PATCH] closes #1388 for magento 2.1

---
 Helper/Data.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Helper/Data.php b/Helper/Data.php
index 24ed58de..aa39eb2d 100755
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -707,6 +707,8 @@ public function getMergeVars(\Magento\Customer\Model\Customer $customer, $storeI
 
                 if (!empty($value)) {
                     $mergeVars[$map['mailchimp']] = $value;
+                } else {
+                    $mergeVars[$map['mailchimp']] = '';
                 }
             }
         }