All recurring payment transactions are logged and if any fail, the merchant is able to manually re-trigger the transaction at any point.
'Subscription Profile Queue' page is available from the Admin panel, navigate to MPOWER - Operations - Profile Queue
'Subscription Profile Queue' page contains all recurring payment transactions, the merchant is able to monitor of Subscription Profile status
The Message column provides the details necessary for the merchant to understand the reason for payment failure, the reasons may be different for example non-sufficient funds, expired credit cards, etc.
In these cases, the customer will be informed by mail (How to configure Card expired notification) or (Notifications-Payment-Failed-Setting).