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George Moroses
/ Categories: Infor LX & BPCS Tips

Infor LX & BPCS Tip: MPS Planned vs. MRP Planned

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 LX (ERP LX) will calculate the 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

Is Lot Control necessary?

Certain industries require lot control, where others may find it an option based on how they want to trace the material used in a product in the event of a defect, or recall.

LX provides tight lot controls and flexibility with lot number assignments. Shop orders can have a pre-assigned lot number, or a lot number can be automatically assigned when the item is produced. You can also assign a specific lot number for the entire shop order, or for each item/quantity reported against a shop order.

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How can I use an alternate item on a shop order?

The best way is to have the approved alternate item appear on the Bill of Material just after the standard item with a zero required quantity. Now the alternate item will appear on the Shop Order. So, if the standard item is not available, the alternate item can be issued to the shop order.

When the shop order is closed out, one item will have an unfavorable variance while the other shows a favorable variance. This is an easy way to provide alternate items provided engineering approves and they are part of the Bill of Material.

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Tips: LN | Baan

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