Reimbursement Paid to Card Issuer Notification

Summary

Does anyone know what transaction/processing triggers the 'Reimbursement Paid to Card Issuer Notification'

Content

Customer is testing the Expenses Configurable Workflow Notifications and wants to know what triggers the generation of the 'Reimbursement Paid to Card Issuer' notification. As per the Implementing Expenses guide, it uses the 'ReimbursementPaidToCardIssuerNotification.rtf' template and the 'FinExmReimToCardIssuerFyi' Workflow but I haven't been able to identify what transaction or process triggers the actual notification.

Any help appreciated

Regards

Lesley