This chapter explains the role that BOM types play within bills of manufacturing and how they are properly used.
What is a BOM type?
Whenever you create a new BOM in the Bills of Manufacturing screen, you must assign it to a BOM type. The BOM type determines the quantity basis and scope of BOM specifications.
Use the ‘BOM’ type to define a parent quantity of ‘1’
Use the ‘BOM’ type to define specifications against a parent quantity of ‘1’. When a job is generated, setup and labor hours and component usage quantities are multiplied by the job quantity to establish total job hours and component quantities.
The ‘BOM’ type is used for discrete manufacturing where distinct items are made in variable quantities. Virtually all assembled and fabricated items use this style of manufacturing.
Only use the ‘Batch’ type for true batch manufacturing
The ‘Batch’ type should only be used for batch manufacturing where products are made using a batch formula or recipe. Food, chemicals, plastics, and liquids typically use this style of manufacturing. See chapter 16, Batch Manufacturing, for details.
The ‘One-Off’ type is assigned automatically
The ‘One-Off’ type is assigned by the program when you create a BOM for a one-off item generated by the One-Off Item Generator during quote entry. This type of BOM is only used for custom specifications related to a single job and the BOM gets inactivated when the associated sales order gets closed. See the Custom Manufacturing guide for details.
The ‘Secondary’ type is used for secondary outputs
When an item is a secondary output, meaning a byproduct or co-product derived from jobs for other items, it is assigned the ‘Secondary’ type. Such items are never made on their own jobs and are not given routing, component, or output specifications. Their only use within BOMs is to be added as a secondary output on the Outputs tab within other BOMs. See chapter 14, Outputs, for details.
The ‘Phantom’ type is used for product options
Phantom assemblies are used to represent sets of components and are typically used with custom manufacturing as product options. A phantom assembly does not have revision or routing specifications. See the Custom Manufacturing guide for details.
WARNING: Phantom assemblies are not suitable substitutes for subassemblies. See the previous chapter for details.
