Creating and Changing MPN-MRP Sets

Use

You group interchangeable parts that belong to one Form-Fit-Function (FFF) class in manufacturer part number-material requirement planning (MPN-MRP) sets, if the system should take account of the interchangeability of these parts in material requirements planning (MRP).

Note Note

The system can create the MPN-MRP sets for all parts that are contained in the same FFF class. For more information, see Generating MPN-MRP Sets Automatically .

End of the note.

Prerequisites

The parts that should be included in MPN-MRP sets

  • Are assigned to a common FFF class and must exist in the plant

  • Have an MRP type that allows MRP

  • Have the same attributes that are relevant for MRP These attributes are material type, base unit of measure, MRP group, MRP type, period indicator for forecast requirements, and so on.

MRP Areas

If you want to use MRP areas to plan requirements and create MPN-MRP sets, you have to

  • Activate MRP for MRP areas in Customizing for Requirements Planning

  • Create MRP areas in the plant and assign storage locations

  • Assign one or more MRP areas to the planning parts by creating an MRP area segment for each MRP area in the material master.

    Note Note

    A plant-MRP area already exists and covers all storage locations in the whole plant by default. Once you create your own MRP areas, the system removes the storage locations in these MRP areas from the plant-MRP area.

    Every part is assigned automatically to the plant-MRP area.

    You can define parameters for requirement planning and forecasting for each part and assigned MRP area. These parameters can be different to those defined for the whole plant.

    End of the note.

For more information, see MRP Area .

Procedure

  1. From the SAP Easy Access menu, choose Start of the navigation path Logistics Next navigation step Central Functions Next navigation step Engineering Next navigation step Interchangeability of Parts Next navigation step Maintain End of the navigation path .

  2. On the selection screen, enter a Material or an FFF class and choose Start of the navigation path Goto Next navigation step MPN-MRP Sets. End of the navigation path

    If conversion-exit is activated, you can enter the SAP material number or the MPN. The system converts your entry into the MPN and adds the external manufacturer to it.

  3. Choose Start of the navigation path Edit Next navigation step New Entries. Then enter the following data: End of the navigation path

    • A name for the MPN-MRP set

    • The parts in the FFF class that you want to group in the MPN-MRP set

    • One part in the MPN-MRP set as the leading part

  4. Save your entries.

    If an error occurs, the system displays an error log. The MPN-MRP set is not saved. To run consistency checks, choose Start of the navigation path Utilities Next navigation step Check End of the navigation path .

Functions for Changing MPN-MRP Sets

Menu

Use

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Generate MPN-MRP Set End of the navigation path ( Generate Set )

Copies all FFF class parts to an MPN-MRP set.

If you do not enter an MRP area, the system enters the plant-MRP area.

If the MPN-MRP set does not exist, the system adds all parts in the FFF class. Select a part as the leading part .

If the MPN-MRP set exists, the system adds the parts that belong to the FFF class, which are not in the MPN-MRP set. The leading part of the MPN-MRP set remains the same.

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Copy MPN-MRP Set End of the navigation path ( Copy Set )

Copy the complete MPN-MRP set of the selected part from a plant or MRP area to another plant or MRP area.

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Delete MPN-MRP Set End of the navigation path ( Delete Set )

Deletes the complete MPN-MRP set of the selected part.

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Split MPN-MRP Set End of the navigation path ( Split Set )

Moves the selected parts to a new MPN-MRP set.

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Connect MPN-MRP Sets End of the navigation path ( Connect Sets )

Connects the whole MPN-MRP set of selected parts to another existing MPN-MRP set.

Start of the navigation path Utilities Next navigation step MPN-MRP Set Next navigation step Move Set End of the navigation path ( Move Set )

Moves the whole MPN-MRP set of the selected part to another plant or MRP area.

Start of the navigation path Utilities Next navigation step Product Group Next navigation step Generate Product Group End of the navigation path ( Generate Product Group )

Generates a product groupthat contains the same parts as in the MPN-MRP set.

The system copies subsequent changes to the MPN-MRP set automatically to the product group.

Start of the navigation path Utilities Next navigation step Product Group Next navigation step Delete Product Group End of the navigation path ( Delete Product Group )

Deletes a product group.