Component documentationProduction Planning Using the Rapid Planning Matrix (RPM)

 

This component contains the functions for planning the component requirements for the production of cross-variant products having high order volume that are produced together on one line network. The line network can consist of several sequential and parallel lines (alternative line groups). You can also specify that the system is to calculate which activities are required for production in the planning run.

It is an enhancement for the Production Planning and Detailed Scheduling component in SAP APO. It uses a new technique for BOM explosion in the SAP APO liveCache for processing large amounts of data much faster than was previously possible in planning.

You use this component to plan production in SAP APO for configurable products with many variants and large numbers of sales orders. This form of planning is recommended for make-to-order repetitive manufacturing, such as in the automotive and high-tech industries.

However, you can also use the planning matrix for planning material variants in a make-to-stock scenario. See also: Planning Material Variants.

Production planning with the Rapid Planning Matrix is fast for the following reasons:

  • Planning is based on Integrated Product and Process Engineering (iPPE).

  • A planning matrix for the RPM product is generated in the APO liveCache. The liveCache contains the data relevant to planning, so it is no longer necessary to keep accessing the database.

  • The system determines valid BOM items and activities simultaneously for all planned orders.

For more information, see Rapid Planning Matrix.

Introductory Notes

You can use the rapid planning matrix only in connection with Integrated Product and Process Engineering (iPPE). You maintain data for Integrated Product and Process Engineering in a Discrete Industries system (from 4.6B).

Integration

Integration with planning components in SAP APO and the DI system

Required Function

Necessary Component

For More Information

Generate planned orders for the RPM product and define order sequence

Calculate the components and activities required for the planned orders using the planning matrix.

Model Mix Planning (SAP APO)

SAP APO uses model mix planning to generate planned orders for the sales orders, and to determine the sequence of the planned orders on the production line and the start and end dates for the planned orders. The component requirements are scheduled in the Rapid Planning Matrix, based on the order start dates.

Then the planning matrices for a product are generated.

Update the Rapid Planning Matrix

Production Planning and Detailed Scheduling (SAP APO)

You can start the planning run to update the matrix directly from the menu for the Rapid Planning Matrix, from the product view, from the product planning table, or you can run planning in the background.

Continue planning on lower low-level codes

Production Planning and Detailed Scheduling (SAP APO)

The components to be planned in SAP APO are planned using Production Planning and Detailed Scheduling.

Continue planning on lower low-level codes

Material Requirements Planning (DI system)

The planning file entries for components to be planned in the DI system are transferred to the DI system where they are planned in the next planning run.

Evaluate planning results in SAP APO

Evaluations for Production Planning and Detailed Scheduling (SAP APO)

You can use a separate evaluation to display the Rapid Planning Matrix that SAP APO generated for a product.

You can also evaluate and edit the planning results in planned order management and in the product planning table.

Evaluate planning results in the DI system

Evaluations for material requirements planning

You can evaluate the planning results for the components in the MRP list or the stock/requirements list.

Backflush in SAP APO

Production Backflush in SAP APO and in the DI system

You enter the backflushing data for the orders in SAP APO. The RPM determines the components and activities required for each order.

The goods issues and production activities are automatically posted in the DI system.

Integration with master data components in SAP APO and the DI system

Required Function

Necessary Component

For More Information

Maintain master data in the ERP System

Material master

Define planning data

Maintain production version

Classification system

You define classes for the RPM products and characteristics for the classes. You must use single-value characteristics only.

Variant Configuration

You define object dependencies. Only simple selection conditions are possible. You can maintain object dependencies directly in the iPPE product structure.

You also create a configuration profile.

Integrated Product and Process Engineering (iPPE), consisting of:

iPPE-Product Structure

iPPE Process Structure

iPPE Line Design

You enter the BOM data in a product variant structure.

You use the process structure component to create routing data and assign the components to the individual activities.

You use line design to reproduce the structure of your production lines. You assign activities to line elements in a line balance.

Engineering Change Management (ECM)

You can use Engineering Change Management to manage different change statuses for the product variant structure and start-up parameters. The system takes the change statuses into account during planning. It considers the time-based validity at explosion as well as the location, product class, and start-up parameters.

Transfer of Master Data to SAP APO

APO Core Interface

The ERP system provides SAP APO with master data and movement data.

You use the integration model of the APO Core Interface to control the data transfer.

All transferred master data is automatically assigned to model 000 (model for active planning).

Generate production data structure from iPPE data in APO

Production data structure

You must generate a production data structure (PDS) for the RPM product after transferring the iPPE data. This PDS provides the planning basis for the planning matrix.

Change master data in SAP APO

Product master

Line resource

In the product master, you complete the settings that are relevant to planning.

You enter the production rates and shift model for the line resource that was generated for the line when the data was transferred. Takt-based scheduling is based on the line resource and the data from line design.

Features

You can use the RPM to plan the requirement quantities and dates for components of a product very quickly. You can also plan their assembly locations and determine which activities are necessary for assembling the components. When the product being planned is produced, it passes through a line network that may consist of several production lines arranged in parallel or consecutively. See also: Creation of a Line Structure for a Line Network with Alternatives.

The planning is single-level. The subordinate BOM levels are planned either in the DI system using Material Requirements Planning, or in SAP APO using Production Planning and Detailed Scheduling.

The RPM offers the following functions:

  • Single-level explosion of the iPPE data consisting of the product variant structure, line design, and the process structure

  • Calculation of the required characteristic values and components using the characteristic value matrix and the component variant matrix

  • Scheduling

    Takt-based scheduling is used.

    The rapid planning matrix uses the order start date and the master data that you have maintained in Integrated Product and Process Engineering to determine the exact requirement dates and installation points for the components. The rapid planning matrix automatically changes the requirement dates of the components to match any changes to the start date that are caused by sequence changes in model mix planning.

    The assembly locations and requirement dates for the components are also recalculated in the event of a line change (rescheduling an order to a different production line that belongs to the same group of alternative lines).

  • Grouping of the component requirements for each period

    The requirements for components that are not assigned to the sales order can be grouped for each period. Planning then generates only one procurement element for the grouped requirements. You can use a time bucket profile to define the periods.

  • The planning matrix also takes any phantom assemblies into account that you have included in the product variant structure of the product to be planned. Here, the dependent requirements of the phantom assembly are directly passed on to the components of the phantom assembly. See also: Planning Phantom Assemblies

  • Calculation of the activities required for an order, using the activity matrix

  • Integration of Pegging

    Because the planning matrix is integrated into pegging, the system is able to generate dynamic pegging relationships between the component requirements determined by the matrix and the receipt elements that were generated for them by production planning. This is, in turn, the basis for the creation of alerts and the use of optimization. See also: Integration of Pegging

  • Fixing the components, calculated by the matrix, in the APO planned order, using the Components function in planned order management.

  • Running the ATP check for planned orders to see whether all the important components are available. See also: ATP Check for Planned Orders for RPM Products

  • Continuation of planning for the components in the DI system

    You can continue planning for less important components in the DI system. The planning file entries for these components are transferred to the DI system and planned using material requirements planning. This enables you to take the load off SAP APO without losing the advantages of the quick explosion in the matrix.

  • Evaluations

    The Matrix Display evaluation (transaction MDMD) displays the RPM and has numerous search functions.

    You can also use the evaluations from Production Planning and Detailed Scheduling, such as the product view, the product planning table, or planned order management, to check and edit the planning results.

    The requirements for components that are transferred to the DI system and planned using material requirements planning are displayed in the MRP list and the stock/requirements list as APO requirements.

Restrictions
  • A Rapid Planning Matrix can process a maximum of:

    • 64,000 orders for each valid production version

    • 16,000 component nodes in a product variant structure

    • 64,000 component variants (but automatic division into sub-matrices is possible so that you can create any number of component variants)

    • 4,096 color nodes

  • You cannot use the product process model (PPM) in the APO together with the rapid planning matrix.

  • You cannot use the CDP (Characteristic Dependent Planning) characteristics in SAP APO. You must create the characteristics in the DI system and use the CIF to transfer them to SAP APO.

  • Discontinuation, when stock has been used up, is not possible.

  • It is not possible to plan co-products.

  • The Rapid Planning Matrix can only be used in combination with the iPPE and with production line resources. It cannot be used in combination with shop floor resources (single, multi, single-mixed and multimixed).

  • The transaction RPMBAL to display capacity utilization (capacities of resources and their utilization by activities coming from RPM liveCache matrices) is not released.

  • See SAP Note 699773Information published on SAP site for additional information and restrictions concerning the planning matrix.