In WHMCS to the customer when ordering a service and choosing the payment method as Bank Transfer.

example if the customer requested or requested the service on the 25th and the payment is not confirmed by the billing team, the WHMCS sends billing notifications on the 26th of the same month cron executes charges to the customer.


Sends the first warning or reminder.


then send the second reminder


then send the Third Reminder, these reminders the whmcs cron runs depending on your day number setting.



I very much doubt that WISECP has this function so I know when the user chooses the payment method Bank transfer supports submitting the payment queue even if you have not paid the invoice it remains in Pentente state and does not automatically change as unpaid to send charges to the client. WISECP does not send these reminders with the Transferencia Bancaria payment method.