Overall, you have a decent grasp on things, but the online stock check system is not the same as the Zebra-based one. It supposedly gets updated from the latter database every so often, but it's separate, and often flat out the opposite of reality. Even the internal system is not accurate regarding local stores other than the one the particular Zebra is in, and, worst-case scenario, it can even be wrong about that store's stock. In a nutshell, trust no employee who says a store across town has something without calling them to check. Veteran employees know the whole system is a joke, and will call...and usually then break it to you gently that it's actually not there.