diff --git a/lib/commercetools-import/src/Models/Customers/CustomerImport.php b/lib/commercetools-import/src/Models/Customers/CustomerImport.php
index c5c664eb0b9..c4e7e2c7f22 100644
--- a/lib/commercetools-import/src/Models/Customers/CustomerImport.php
+++ b/lib/commercetools-import/src/Models/Customers/CustomerImport.php
@@ -67,7 +67,7 @@ public function getCustomerNumber();
     public function getEmail();
 
     /**
-     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>.</p>
+     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>. This field is only used when creating new Customers, and is ignored when updating Customers. However, due to the Import API's <a href="/../import-export/overview#how-are-resources-created-or-updated">upsert behavior</a>, a non-empty value must still be provided when updating Customers.</p>
      *
 
      * @return null|string
diff --git a/lib/commercetools-import/src/Models/Customers/CustomerImportBuilder.php b/lib/commercetools-import/src/Models/Customers/CustomerImportBuilder.php
index 76a189b65d2..43e32c17a95 100644
--- a/lib/commercetools-import/src/Models/Customers/CustomerImportBuilder.php
+++ b/lib/commercetools-import/src/Models/Customers/CustomerImportBuilder.php
@@ -206,7 +206,7 @@ public function getEmail()
     }
 
     /**
-     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>.</p>
+     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>. This field is only used when creating new Customers, and is ignored when updating Customers. However, due to the Import API's <a href="/../import-export/overview#how-are-resources-created-or-updated">upsert behavior</a>, a non-empty value must still be provided when updating Customers.</p>
      *
 
      * @return null|string
diff --git a/lib/commercetools-import/src/Models/Customers/CustomerImportModel.php b/lib/commercetools-import/src/Models/Customers/CustomerImportModel.php
index 7a8e93edb88..dd6f2a85027 100644
--- a/lib/commercetools-import/src/Models/Customers/CustomerImportModel.php
+++ b/lib/commercetools-import/src/Models/Customers/CustomerImportModel.php
@@ -288,7 +288,7 @@ public function getEmail()
     }
 
     /**
-     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>.</p>
+     * <p>Maps to <code>Customer.password</code>. Required when <code>authenticationMode</code> is set to <code>Password</code>. This field is only used when creating new Customers, and is ignored when updating Customers. However, due to the Import API's <a href="/../import-export/overview#how-are-resources-created-or-updated">upsert behavior</a>, a non-empty value must still be provided when updating Customers.</p>
      *
      *
      * @return null|string
diff --git a/references.txt b/references.txt
index be5d96e7653..ce31de62a60 100644
--- a/references.txt
+++ b/references.txt
@@ -481,3 +481,4 @@ a80637ece283fffff6a7d554d5645743a15f8c5d
 ae6bd28bc66a9ad876c323a54026e34e4f26c475
 bc6c0e3b0dc6aa11abc8f6d098c3e206a2ae1031
 ebe8dbf7a0e9728994b4b2430d0eb4a6bfbd90e6
+ae7849e0f3326685f81d35bd47f2a23af9aa0249