Business logic design of physical warehouse and virtual warehouse in middle inventory

The concepts of real warehouse and virtual warehouse are aimed at the system development itself . Simply speaking , The warehouse for cost accounting can be called physical warehouse , Those that do not account for costs can be called virtual warehouses . Virtual warehouse is the main transition function in the system .

In the midrange system , Virtual warehouse is equal to the allocation pool of inventory , Inventory of individual items in the same warehouse group , Sum of physical inventory = The sum of empty warehouse inventory .

So in the middle stage inventory management of the mall , How to design the business logic of physical warehouse and virtual warehouse ？ The following issues need to be considered ：

One 、 How to control the sales inventory of each store （ Commodity function ）

scene ： Shicang a,b,c The initial inventory is 0, It needs to be a physical warehouse a,b,c All purchase 100, That is to say 3 Purchase receipt notices , The actual warehouses are a,b,c.

In the above scenario, how do virtual warehouses allocate inventory ？ here , It needs to be used " Allocation pool allocation policy " Control the proportion of inventory entering the phantom warehouse .

hypothesis 3 Each purchase receipt notice puts the inventory into the virtual warehouse a, here , Shicang a,b,c There are 100 stock , Empty warehouse a Yes 300 stock .

The store x, The store y, The store z Sell goods at the same time , The store x Available allocation pool ranges ： Empty warehouse a; The store y Available allocation pool ranges ： Empty warehouse b, The store z Available allocation pool ranges ： Empty warehouse c.

here , The inventory is in empty warehouse a, The store y And stores z What if there is nothing to sell ？ Here you need to insert a description " Move warehouse " The necessity of , That is, inventory adjustment can be performed for virtual warehouses in the same warehouse group by warehouse transfer .

Suppose from the empty warehouse a, Move 50 Inventory to virtual warehouse b, Move 20 Inventory to virtual warehouse c, here , Empty warehouse a stock =230, Empty warehouse b stock =50, Empty warehouse c stock =20.

Does that mean the store x The saleable inventory is 230, The store y The saleable inventory is 50, The store z The saleable inventory is 20 Well ？ But that's not the case , We need to develop an inventory synchronization strategy to control the amount of inventory synchronized from the middle office to each platform .

hypothesis , The store x, Empty warehouse a Synchronous scale =90%, Warning number =10, Reserved number =5, The number of synchronizations at this time =2300.9=207. After a period of sales , Empty warehouse a The inventory has been reduced to 10（ That is, the set alert number is reached ）, The number of synchronizations at this time =（ Available inventory - Reserved number ） Synchronous scale =（10-5）*0.9=4.5, Deduct the decimal point , Synchronize platform inventory =4; When empty warehouse a Available =6 when , Number of syncs =（6-5）*0.9=0.9, Less than 1, Synchronize platform inventory =0.

Two 、 The corresponding relationship between real warehouse and virtual warehouse

There is not a one-to-one correspondence between real warehouse and virtual warehouse , An order is adapted to a virtual warehouse inventory , The delivery physical warehouse may be a physical warehouse with the ordered goods . For example, order to buy goods a, Shicang a Heshicang b All have commodities a Inventory of , The order is adapted to the virtual warehouse a, Shicang a Heshicang b It is possible to ship , The midrange needs an algorithm that can adapt to the optimal （ The distance is optimal , The logistics cost is the best ） Physical warehouse delivery of .

3、 ... and 、 Virtual warehouse inventory transfer

If , The store x Good sales , Empty warehouse can be a,b,c Set to the available allocation pool range of the store profile , Set up shop x, Empty warehouse b Synchronous scale =90%, Warning number =5, Reserved number =2, Set up shop x, Empty warehouse c Synchronous scale =100%, Warning number =2, Reserved number =1, Number of syncs =2300.9+500.9+20*1=272.

give an example , Now open a new store ： The store p, Available allocation pool ranges ： Empty warehouse e. here , Empty warehouse e, Inventory is 0, What should the company do if it no longer purchases ？ Here we need to talk about allocation , This is a document that transfers inventory from one physical warehouse to another . This needs to be clear 4 A little bit ： Transfer out the physical warehouse 、 Transfer to the physical warehouse 、 Call out the empty warehouse , And allocation strategies （ Allocation pool allocation policy ）.

Four 、 Circulation of goods inventory

For the circulation of goods , The actual warehouse of the middle stage = Shipping store , The purchase action is in the store system （ Most are new retail systems ）.

Scenario assumption , Shicang a= store a, Shicang b= store b, Shicang c= store c

Store inventory is synchronized to the middle office , branch 2 Types ： Full and incremental . Total quantity ： Shicang a stock = Synchronize inventory ; The incremental ： Shicang a stock = Shicang a Current stock + Synchronize inventory . give an example ：

Current time physical warehouse a In stock 0, Full synchronized inventory 100, After synchronization , Shicang a In stock 100;

Current time physical warehouse a In stock 100, Incremental synchronization inventory 50, After synchronization , Shicang a In stock 100+50=150; Similarly, the incremental synchronized inventory is -50, After synchronization , Shicang a In stock 150+（-50）=150-50=100.