Open material requirements are satisfied when components are issued and backflushed.
When you create jobs and repetitive schedules that have bills of material, routings, or both, material requirements for the appropriate components are automatically created. These requirements (demands) are considered 'open' until they are fulfilled.
Note: Oracle Work in Process does not support Enforce Integer Rounding.
The planning process and available to promise calculations include open requirements as demand, but do not formally allocate them to their parent jobs and repetitive schedules.
Material shortages occur when insufficient inventory exists to cover open requirements. The MRP planning process reports current and projected material shortages and develops a plan to satisfy those shortages.
You can use negative material requirements to recover by-products or other reusable components. Jobs and repetitive schedules supply negative requirements instead of consuming them. See: By-Product Recovery.
Work in Process supports fixed component usage for material requirement calculations. For these components, the total quantity required remains the same without regard to the build quantity, and consumption quantity does not vary with the assembly quantity produced. This feature is used when a fixed lot quantity of a component is used for manufacturing setup, production startup, or during the course of the manufacturing process.
Fixed component usage is defined in the Resources window in Oracle Bills of Material: set the Basis field to Lot. For lot type basis, component usage is fixed per lot. See: Defining a Resource
This feature is applicable to discrete jobs, and work orderless, and flow transactions, but not supported for components of:
Phantom assemblies
Repetitive schedules
Option items, and sub-models on an ATO option class or ATO models
Note: It is available for mandatory components on an ATO option class or ATO models.
You can view available-to-promise (ATP) status of components as you define, simulate, and view discrete jobs and as you view repetitive schedules. See: Viewing Component ATP Information
The Discrete Job Shortage and Repetitive Schedule Shortage Reports list shortages or open requirements for jobs and repetitive schedules based on requirement date. You can optionally include quantities in non-nettable subinventories in the on-hand quantities displayed on these reports. You can also use these report to view bulk and supplier component requirements.
The View Material Requirements window can be used to view the requirements for a component across jobs and schedules. You can view quantities required and issued for each component.
You can supplement materials information provided by WIP reports and inquiries with Oracle Inventory reports and inquiries. For example, you can use Oracle Inventory reports to list on-hand balances and transaction information.