How to add the billing fax No. to custom column to magento customer grid ? Magento 1.8. CE
I´ve found this file with following solution, but it doesn´t help!
/pages/c9/43/d0009101/home/htdocs/development-environment-trend-mb/trendmb-de/app/code/core/Mage/Adminhtml/Block/Customer/Grid.php
Adding This Line 55
->joinAttribute('billing_fax', 'customer_address/telephone', 'default_billing', null, 'left')
And Adding This Line 60
$this->addColumn('Fax', array( 'header' => Mage::helper('customer')->__('Fax'), 'width' => '100', 'index' => 'billing_fax' ));
Fax Column will display, but without any fax No.
Could anyone help me?