We are not currently using periodic expiration of our PIN numbers. We are going to change that setting to every 90 days. Will that mean exactly 90 days later that everyone will be required to change their PIN? I want to set expectations for our help desk in regards to potential call volume. Also are users prompted on the day of expiration or is there a warning ahead of time? If there is a warning, what is the length of time before the expiration that they could expect to receive a warning about the upcoming expiration?