I'm being promoted from janitor to department manager at a 24/7 Walmart 2 assistant managers, and all the other department managers recommended me to the store manager.
I don't know shit about being a manager, will the training be enough or will I fail?
you'll do fine. there will be some training and just whenever you have a question, ask a hire up. then commit that to memory so if they ever call you out on doing this, say 'XX specifically recommended this option to me'.
but at walmart being this kidn of manager is really more like just telling people which specific aisle they'll be stocking. you basically pick who gets to suffer what, while also doing the same work they are. its really no big deal