Insert a checkmark in this field if you want the program to immediately assign and calculate low-level codes for each component part in the product structure. If you have large amounts of data, this function can have negative effects on the program's performance, for example during automatic cost adjustment. Note that this is not a retroactive function, so it is a good idea to consider the use of this facility beforehand.
Alternatively, you can run the Calculate Low-Level Code batch job from the Manufacturing menu by clicking Periodic Activities, Calculate Low-Level Code.
Attention:
Low-level codes must be calculated before you run the Calculate Plan batch job.
You can assign a low-level code to each part in the product structure or the indented BOM. The top final assembly level is denoted as level 0 - the end item. The higher the low-level code number, the lower the item is in the hierarchy. For example, end items have low-level code 0, and the item parts that go into the assembly of the end item have low-level codes 1, 2, 3, and so on. The result is the planning of component parts coordinated with the requirements of all higher-level part numbers. When you calculate a plan, the BOM is exploded in the planning worksheet, and the gross requirements for level 0 are passed down the planning levels as gross requirements for the next planning level.