To generate critical material requirementsWhen a production plan is generated, the critical components needed to carry out this production plan are recorded as critical material requirements. In the Item Master Plan (cprmp2101m000) session, these requirements are visible as dependent material demand. A component is considered a critical material for the production of an item if the following conditions are met:
As a rule, critical material requirements are generated when you update an item master plan (refer to the topic To maintain an item master plan. (When you use the Initialize, Roll, and Update Scenario (cprpd4200m000) session, however, you can disable the generation of requirements.) Because the production process obviously takes time, the planning of a critical material requirement must fall sometime before the planned supply of the end item. Assuming that the supply of the end item is evenly distributed over the plan period, the material requirement is shifted back in the past with the lead-time offset recorded in the BCM of the end item. Offsetting logic BCM LN takes into account the parent / component relation when it calculates dependent demand for critical items. As a result, LN plans a multiple of the bill of critical materials (BCM) quantity in each plan period. The advantage is that you do not have to wait until the production plan of all the periods over which the dependent demand is spread, is executed. The offsetting process to plan critical components is as follows:
You can view the critical material requirements in the Critical Material Requirements (cprmp2505m000) session. The origin of critical material requirements is displayed in the Critical Material Requirements (cprmp2505m000) session. Note To guarantee that dependent demand explosions of critical items are allocated to the correct warehouse, a warehouse must be specified on the BCM line. LN automatically enters the warehouse specified for the item on the BOM line in the Bill of Material (tibom1110m000) session, or the warehouse specified for the item in the Items - Ordering (tcibd2500m000) session if no warehouse is specified on the BOM line. Common explodes the ATP and the dependent demand of a main item to plan items that have the same cluster as the warehouse you specified on the bill of critical materials of the main item.
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