I believe it is a company wide thing. Most folks I know from other stores say the same thing.
They say why they have the vacation?
We have had some take a vacation the same week of inventory or even Christmas. But it was cause one got married which how did they know when they set the date when the store would inventory so no big deal really and unless your a real die hard dedicated to Wally World associate I don't think anyone is going to rearrange their wedding day for inventory and the other was a premade thing they had already bought tickets for. It would depend on the cirucmstances on wether or not they get it.