For the DPS Card and Account Services
The Card Services API supports the following functions:
Where these functions are based on a given cardId, one way would be to get Notification Subscriptions for all of your cardIds, which includes the following optional notification variables with the associated notificationID:
TextMessageReminder = -2, TextMessageOptInActivationNotice = -1, DailyAvailableBalance_Text = 1, ApprovedPendingTransactions_Text = 2, DeclinedTransactions_Text = 3, ValueLoad_Text = 4, ChangeOfCardStatus_Text = 5, LowBalance_Text = 6, FundsTransferRequested_Text = 7, CardholderProfileDataUpdated_Text = 8, AdultOrientedPurchase_Text = 9, PendingDeposit_Text = 10, DailyAvailableBalance_Email = 1083, ApprovedPendingTransactions_Email = 1084, DeclinedTransactions_Email = 1085, ValueLoad_Email = 1086, ChangeOfCardStatus_Email = 1087, LowBalance_Email = 1088, FundsTransferRequested_Email = 1089, CardholderProfileDataUpdated_Email = 1090, AdultOrientedPurchase_Email = 1091, PendingDeposit_Email = 1106, DailyAvailableBalance_PushNotification = 2001, ApprovedPendingTransactions_PushNotification = 2002, DeclinedTransactions_PushNotification = 2003, ValueLoad_PushNotification = 2004, ChangeOfCardStatus_PushNotification = 2005, LowBalance_PushNotification = 2006, FundsTransferRequested_PushNotification = 2007, CardholderProfileDataUpdated_PushNotification = 2008, PendingDeposit_PushNotification = 2010
Thank Nexus_Software for your help, however even if I enabled all of the notifications I still wouldn't necessarily get any of them when a transaction occurred. The notifications are based off specific conditions that act as triggers - low balance, change of card status, etc. In most cases I would never get any notifications from the card. Even if there was a way to get a notification when a transaction occurred I would have to get all of the transaction history again and figure out which transactions are new (ie I haven't looked at them).
Have you looked at Visa Transaction Alerts / Visa Transaction Controls?