“wpcfe_invoice_shipper_info” action hooks that allow to add additional information in the invoice template shipper information section.

Note: This is available only in the Frontend Manager addon plugin.
Copy and paste this code to the theme functions.php file for sample code.
// In this sample code it will add address to the barcode information.
function my_custom_data(){
?>
<p style="margin-top:8px;">Secondary Address:</p>
<p>1234 NW Bobcat Lane, St. Robert, MO 65584-5678</p>
<?php
}
add_action('wpcfe_invoice_shipper_info', 'my_custom_data');