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SAP Functional, Basis Components, and ABAP Programming Books

MD02 - Run MRP Single item Multi level

MRP reads the requirement from:

Points to note:-
If you have just changed the BOM and want to have the latest update.
Execute with Planning Mode    2  -  BOM is re-exploded

When you found that the MRP did not automatically Create the Purchase Requisitions for in-house production.
Execute with Planning Mode    3  -  Delete planning dates.

MRP can easily re-create Purchase Requistions and Planned Orders based on the latest requirement changes.  Therefore, it is allright to execute with Planning Mode 3.

BOM - Do not built a BOM with a Material Type ROH Level 1 and Level 2, as MRP will not consider the requirement for Level 2 since it is a Raw Material.  (no additional process required).

                        Level  1        ROH

                         ...Level 2        ROH

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