With multiple sites using the same ePDQ account, using ePDQ_custom_order_id is necessary to differentiate the orders on ePDQ. The auto status check currently does not work with ePDQ_custom_order_id, it simply uses the bare order id from the order so it always fails. Adding ePDQ_custom_order_id support to the auto status check facility would fix this and make it usable in this scenario.