January 2014 / PhreeBooksR36RC3
HowTo Author – Charles
Master stock items are best described with an example. For example, T-shirts come in colors and sizes. These would be the attributes for the item T-Shirt.
- a Red T-shirt in small, might have an SKU: Tshirt-RDsm
- a blue T-shirt in medium, might have an SKU: Tshirt-BLme
- a yellow T-shirt in large, might have an SKU: Tshirt-YLlg
In this example ‘T-shirt’ is the Master Stock Item and colour and size are the attributes.
Why have Master Stock Items? It makes updating your stock faster and simpler. By changing the details of the Master Stock Item (e.g. Full Price) these changes are automatically applied to all the ‘children’ of the Master Stock Item.
NOTE – once a Master Stock Item / Master Stock Assembly has been created, it cannot be added to i.e. you cannot later add an additional colour or size. You would have to enter them as a regular Stock Item and thus they wouldn’t be automatically updated when the details of the Master Stock Item were amended.
A Master Stock Assembly (MSA) is simply a Master Stock Item that is an ‘assembly’ i.e. it is assembled using other Inventory items in quantities defined in the BoM (Bill of Materials).
Once a Master Stock Assembly has been created in Inventory, including defining the BoM constituents (Bill of Materials), you can then ‘assemble’ some Inventory:
INVENTORY > Assemblies, ‘Assemble/Disassemble Inventory’
It is worth noting the following:
- Assemblies have to be created (and thus their Inventory numbers increased) manually. This should reflect reality – i.e. they should be created into stock when they are physically created.
- When an assembly is assembled, the stock of its BoM items are reduced accordingly.
- Assemblies can be disassembled by creating a negative number of assemblies. This will also adjust the stock of items in the BoM.
In the screen-shot above, please note that ‘Stuff’ is the Master Stock Assembly (not itself representing an item in stock) and the inventory listed below it represents the actual Inventory in the warehouse (the children of the MSA) – with the ‘attributes’ defined in their respective SKU’s.
The Master Stock Assembly can also be used to address the common business situation of buying in bulk (one SKU) and selling in a smaller quantity/individually (another SKU). I have put this in a separate How-To.