Admin-Order-Create-Set-Save-address-checkbox-true-as-default-magento#106

Author: krnshah

app/code/Magento/Sales/view/adminhtml/templates/order/create/form/address.phtml

@@ -89,7 +89,8 @@ endif; ?>
         <?= $block->getForm()->toHtml() ?>
 
         <div class="admin__field admin__field-option order-save-in-address-book">
-            <input name="<?= $block->getForm()->getHtmlNamePrefix() ?>[save_in_address_book]" type="checkbox" id="<?= $block->getForm()->getHtmlIdPrefix() ?>save_in_address_book" value="1" checked="checked" class="admin__control-checkbox"/>
+            <input name="<?= $block->getForm()->getHtmlNamePrefix() ?>[save_in_address_book]" type="checkbox" id="<?= $block->getForm()->getHtmlIdPrefix() ?>save_in_address_book" value="1"
+                   <?php if (!$block->getDontSaveInAddressBook()): ?> checked="checked"<?php endif; ?> class="admin__control-checkbox"/>
             <label for="<?= $block->getForm()->getHtmlIdPrefix() ?>save_in_address_book"
                    class="admin__field-label"><?= /* @escapeNotVerified */ __('Save in address book') ?></label>
         </div>