Adds the courier tracking number to the "In Transit" e-mail sent to the customer.
#
#----------[ OPEN ]----------
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admin/tabs/AdminOrders.pp
#
#----------[ FIND ]----------
#
'{followup}' => str_replace('@', $order->shipping_number, $carrier->url),
#
#----------[ AFTER, ADD ]----------
#
'{shippingnumber}' => $order->shipping_number,
#
#----------[ OPEN ]----------
#
mails/(your language)/in_transit.html
mails/(your language)/in_transit.txt
#
#----------[ ADD, WHERE YOU WANT ]----------
#
{shippingnumber}