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George Moroses
/ Categories: Infor LX & BPCS Tips

Infor LX & BPCS Tip of the Week: MPS vs. MRP

What items should be MPS planned, and what items should be MRP planned…

Master Scheduled Items are those items that are finished goods, or service items, that receive their requirements either specifically from Independent demand, or both Dependent and Independent demand.

  • Independent Demand is demand that cannot be calculated from higher level demand in the product structure, and therefore must be either a forecast or an actual customer order (Finished Goods or Service parts sold to customers).
  • Dependent demand is derived from higher level demand in the product structure. Dependent demand includes components, raw materials, and sub-assemblies. (these are not normally Master Scheduled Items).
  • Service Parts may have both independent demand from forecast and/or customer orders, as well as dependent demand from higher level demand if that item is also used in other sub-assemblies or products.
  • Cumulative Lead Time is a concept used in Master Production Scheduling (MPS) that combines the “fixed” lead time, and the “variable” lead time needed to produce the product. It is the longest path through a given Bill-of-material. Based on the MPS setup options, Infor/ERP LX will calculate cumulative lead time (also called “the Critical Path”) for you (use the “indented BOM” display in BOM300 and find the item with the longest lead time “L/T”). Note: You may have to use Action 21, Line Detail, to see the “L/T” lead time for each item.
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Tips:  LX | BPCS | M3

In SFC600, there is no code to capture the time spent on re-work. Re-work is usually at a specific operation, or when the part is finished and QC determines that re-work is required in order to pass inspection. You are faced with deciding on how to report the additional labor time.

Do you continue to report it against the operation, or create a re-work shop order?

If you are re-working through a specific operation you can capture the time as run labor with the SFC600 program. Now you need to deal with the variance of actual to standard time and what impact this has on costing.
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Make to Order? No problem if you use the Configuration Management System. This LX product allows you to define and configure a make to order product during Customer Order Entry. Basically, you have the option to create different products under the same common product item. You will get two completely different common end items that are configured from the same common parent.

The customer orders are planned and turned into shop orders for each end item with all the associated components. With an MES solution in place, the shop order side is easy to schedule and allows you to manage the shop floor.

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Tips: LN | Baan

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