How are purchased item revisions handled?
An MRP system requires part number specificity to job component generation and therefore a unique item ID is required to distinguish one revision from another. Here is the basic guideline to follow:
•If using a particular revision for a component is an engineering requirement for a parent item, each revision must be represented with a unique item ID for specificity within the BOM.
•If different revisions are interchangeable, can be freely used in any BOM, do not need separate inventory tracking, and can be purchased based on best price and availability, only then should a single item ID be used.