Li Xiang is the beverage operator of an e-commerce company. Recently, he is happy and depressed.
A few days ago, he reached a cooperation with Maotai Company, and Maotai is willing to provide the sales channel qualification of 1w bottles per year. This is a great thing for Li Xiang, and it can almost save their platform's survival problem. If there is Maotai, there will be traffic.
Good things come and go, things are far from smooth. He later found out that the people who came to buy Maotai were all scalpers, and these people had obvious characteristics:
almost no shopping history
Just opened a membership
What makes him even more difficult to accept is that he has to do a lot of canceling orders, and even needs to call these scalpers to appease country email list his emotions one by one. Why?
The order is oversold! Assuming that there is still one bottle of Maotai, all scalpers can pay at the same time, but only one order can be successful. The main reason for this problem is that they did not understand the deduction method of commodity inventory, thinking that payment can occupy inventory, which must be correct.
There is no problem in low traffic and low concurrency scenarios, but in high concurrency scenarios such as big promotions and spikes, the problem will be infinitely magnified. Before solving this problem, let's sort out the concept of inventory.
1. How to understand inventory?
The products you see on the e-commerce platform, the scientific name is called front-end products, are products created by merchants in the backstage of the store. For example, you can see Lao Wang's book in the picture. Correspondingly placed in the warehouse, it cannot be called a commodity, it is usually called a commodity, and the scientific name is a back-end commodity.
Learn how the e-commerce platform deducts inventory
Between the front-end product inventory and the back-end product inventory, in certain scenarios, the synchronization operation of adding, deleting, modifying and checking needs to be performed.
For example, when a user buys a book from Lao Wang, the warehouse needs to receive the news, deduct the inventory of the book and feed it back to the front end. However, there is a time lag in this message transmission, which will lead to problems encountered by Li Xiang; in addition, if there is new inventory in the back end or inventory that is about to be stored in transit, it must also be synchronized to the front end.
After understanding the above concepts, we are sorting out the deduction methods and advantages and disadvantages of the front and rear inventory.
2. Photographed to deduct inventory
You are going to buy a white iPhone 12 256g. After submitting the order, you want to think about it for a while, but you do not pay. But the platform will help you lock the inventory and directly occupy the iPhone in the warehouse. Later, you found out that the iPhone took 1,000 photos at a time, and you didn't bother to care about it, so you just put it there and do other things.
But this is a disaster for the platform. There are only 1000 iPhones in the warehouse, all of which are occupied by you, and the order time is 24 hours. If you don't buy it, either the platform will wait for you to cancel it, or you will call you to negotiate the cancellation.
Suppose there are 10,000 people who do this, and the platform is still in the wool business, so I will play with them. Generally, it is not recommended to take photos to deduct inventory. It is very likely that some people will maliciously take inventory, resulting in major losses to the platform.