backup cashier

I just came back from LOA and work on the sales floor. My store has been calling people to help out at the check lanes because it is so busy. Do I need a pin to get into the register? If I don’t know my pin from when I created it over two years ago how do I reset it? I’m just anxious about...

I just got hired as a general merchandise expert and I am scheduled to work 2 shifts on the register. I am a little bummed out since I did not want to be a cashier. How many days do you get scheduled as a cashier? Or did they do that at the beginning just so you get trained for backup??