closing expert

I'm a Team Member in XXX department at my store but recently I've been working to move up within Target. I first was labeled as a Pace Setter and then a Team Trainer and finally, I decided it was time to talk to my SD about switching to a different role within the store where I could learn more...

What do the closing experts do?

Okay, I’m confused af. First off, does anyone know what area acronyms abc and gei could stand for? Second off, can someone explain the full detail of what a closing expert does? Please and thank you