The global invoice process. What the hell is that?

I don't really get this commercial for Xerox, showing how it can be of benefit to Marriott. While it's amusing enough to see these young men falling all over themselves to accommodate each other, I don't see the logic. The commercial ends by saying that "Marriott Hotels and Resorts knows that it's better to automate their global invoice process so that can focus on serving their customers." Except these are not customers but—I would guess from their uniforms—Marriott employees. And since they look like bellboys why are they in an office setting? In addition I don't know whether these two guys are supposed to be gay or if the material leads to that conclusion. This is probably something that business people easily understand, but only addles cranky critics like me.