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| Can batch characteristics be
considered while running a MRP? I have a finished good that has acid value
as its batch characteristics. Based on this acid value I am trying to pick
up a certain batch of raw material that is also batch managed and has its
characteristics as acid value.
While running MRP qty requirements are transferred and stock is reserved but the required batch qty (having the acid value required) of raw material is not picked. MRP does NOT use batch data. Because, while entering PIR, there's no field to enter batch number. When system creates planned order, also there's no field to enter batch number, both for the header material and planned order components. There's one exception in PP-PI, where you can use batch specific unit of measure. That is, you can define batch level alternative unit of measure. For example, you may have a liquid, and it may have Liters as base unit of measure, and it may also have the percent based active ingredient, that is Liters of the Active Ingredient can be an alternative unit of measure. So, every movement of material in the system will be done
using 2 unit of measures at the same time. e.g. goods receipt of 100 Lt
liquid (which is also 80 Liters of Alcohol, because of 80% alcohol potency),
for the first batch. also goods receipt of another 100 Lt liquid (which
is 60 Liters of Alcohol this time, because of 60% alcohol potency) When
you look at your stock, you will see 200 LT liquid, which is equivalent
to 140 LT Alcohol ingredient.
What's the use of this active ingredient data during MRP? When you define the batch unit of measure, you define
limits for it. Say, our liquid in previous example can only be between
50% and 90%, therefore we define it like that. Every time we receive this
material from vendor, we make the quality inspection and determine the
Alcohol percentage. however, while running MRP, system will create purchase
requisitions, but it doesn't know the percentage of the liquid our vendor
will send.
How will it determine the correct quantity? In this case, we define a percentage for MRP, and MRP will use that percentage for calculation. e.g. if there's an industry standard that all vendors of that liquid produce it at 75%, or if we are always working with a vendor who produces 68%, then we can enter this data (per material) and MRP will calculate with that percentage. With Compliments by: Osman Karslioglui |
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