I was already a Head Cashier at CVS when applying to be a Shift Supervisor. My store manager had to get the approval of our district supervisor for the promotion. After that I was given a work book to study about how to handle any and all events that might occur during a shift. Upon completion I was quizzed by my store manager. This was followed by several online classes and tests and a 2 day class for pharmacy training.

Was a simple interview, lasted approximately 30 mins and covered the standard interview questions. Mostly available to people already working at the store. Would recommend longer tenure before applying. Not much else to say to be honest.