Firstly, the first order is a small amount, the transportation cost is wasted. The whole process you may lose more than half of the freight.
Secondly, it takes more time. The hotel toiletries suppliers of the first order are out of use soon. Generally speaking, the hotel room amenities suppliers can not guarantee the delivery time because of the less order, because the suppliers have to wait for other lists to produce together. And then, when the hotel guest room amenities suppliers of the first order are out of use, the hotel has to make the second order, there is no other choice, no hotel products will be available. But the two orders take two production time, two transportation time and two customs clearance time. Time is wasted.