Alternate Structures/Formulas
An item can use a product structure that is defined for a BOM code different from the item number. After you have defined a BOM code and a product structure or formula, link it to an item based on how it will be used.
• If the structure/formula should be the default for an item, update the BOM code in Item Master Maintenance (1.4.1) or Item Planning Maintenance (1.4.7). The system uses this BOM code for MRP, work orders, repetitive manufacturing, and costing.
• If the structure/formula should be the default for an item at a particular site, update the BOM code in Item-Site Planning Maintenance (1.4.17). The system uses this BOM code for MRP, work orders, repetitive manufacturing, and costing for an item at a site. This overrides the BOM code set up at the item level.
• If the structure/formula should be available as an alternate for an item at any site, use Alternate Structure Maintenance (13.15) to link the BOM code with an item. You can then change the BOM code on a work order to this alternate structure/formula.
• If the structure/formula should be available as an alternate for an item at a specific site when a specific routing is used, use Alternate Routing Maintenance (14.15.1) to link a BOM code and routing code to an item-site. You can then change the BOM code on a work order to this alternate structure/formula when using the specified routing code.