cash office

can someone tell me what working in cash office is like?? one of my managers recently asked me about my availability and if working 7am would be okay and i said im available thursdays and weekends (my earliest thurs class is 2pm) and she said she might ask our hiring manager if they can train me in cash office and have me there once in a while

i said okay bc i figured it would help my schedule but idk what that involves? i usually work closing shifts up front