By default, a Send Credit Card Expiration Notices job is configured to run once a month. This can be found under Admin Tools > Settings > Jobs Administration. The purpose of this job is to let people know that their credit cards are about to expire. Typically, this will mean that the job will send an Expiring Credit Card Notice system communication (Admin Tools > Settings > System Communications) to the person whose credit card will expire the following month. However, some organizations may use a bus message to signal their system to send an email by enabling the Enable Sending Bus Event option. If you wish to do additional processing for each expiring scheduled credit card transaction, the job can optionally be configured to launch a custom workflow. You can also choose to delete any saved accounts with credit cards that have expired after the provided number of days.