MRP

November 28, 2017 | Author: Satyendra Gupta | Category: Production And Manufacturing, Industries, Accountability, Computing, Technology
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This segment from our 390 page Material Requirements Planning (MRP) manual is being made available as a sample of our training manuals. Please contact [email protected] if you have any SAP training needs, or visit www.ERPtips.com for more information. Written by Alexis DeStaffany Parker Published by Klee Associates, Inc. Copyright Klee Associates, Inc., 2010

Unit 4: Materials Requirement Planning The goal of materials requirement planning is to produce an optimal supply of material for the customer demand. The customer demand might be for an actual customer or for an internal customer in the case of sub-assembly production or externally procured materials. The following are the goals of materials requirement planning: 

Maximizing availability of materials for internal and external customers



Minimizing warehouse stock



Minimizing logistics costs for both procurement and production

In order to achieve these goals materials requirement planning must balance inventory with service of the customers. Materials requirement planning provides the ability these goals in the following ways: 

Providing gross and net requirement calculations



Providing bill of material explosion for all components



Providing lot size determination to optimize purchasing and production



Providing safety stock strategies for optimizing inventory levels

In this unit, we will review the following: 

Materials Requirement Planning Calculation



Materials Requirement Planning File



Materials Requirement Planning Sequence Review



Materials Requirement Planning MRP Types



Materials Requirement Planning Processing



Materials Requirement Planning Configuration



Materials Requirement Planning Business Add-Ins

Materials Requirement Planning ECC 6.0 SAPtips Sample Material Requirements Planning MRP Planning

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Materials Requirement Planning Calculation Materials requirement planning calculation is performed during the run of materials requirement planning. The system uses the settings in configuration, master data, demand and supply to determine where there are shortage and overages to determine the most optimal plan based on the defined settings. As reviewed in the overview, we discussed the process of calculating the supply requirements based on the demand elements. In the diagram below we see the demand requirements and the supply requirements, in this section we will review all of these components, perform a demonstration of the calculation in materials requirement planning and perform and exercise in materials requirement planning calculation.

The following demand items are found in materials requirement planning calculation: 

Sales Orders



Sales Scheduling Agreements



Dependent Requirements



Reservations



Planning Independent Requirements

The following supply items are found in materials requirement planning calculation:

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Planned Orders



Purchase Requisitions



Schedule Lines



Purchase Orders



Production Orders

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Unit 4: Materials Requirement Planning



Inbound Deliveries



Stock

Demonstration: Materials Requirement Planning Calculation In this demonstration, we will perform the following steps: 

Create a material master record



Assign the lot size for monthly lots and enter a rounding value



Create demand for the material



Run single-item, single-level on the material



Evaluate the results of materials requirement planning

Step 1: Create Raw Material Master Record 1. To create a raw procured material, perform one of the following: 

Enter transaction code MM01.



Select the SAP menu path: Logistics  Materials Management  Material Master  Material  Create (General)  Immediately

2. Enter the Material Number, Industry Sector, Material Type, and Copy from material, and press Enter.

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3. Highlight the views required for the material and lick the

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button.

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Unit 4: Materials Requirement Planning

4. Enter the Plant and Storage Location for both the organizational levels, and Copy from, and click the

button.

Make sure to enter the copy from for plant and storage location, otherwise, the defaults from the copy from material will not copy over to the creation of this material.

5. Press Enter through all the views of the material master until the save screen is prompted as seen below.

6. Click the

button.

Step 2: Assign the lot size for monthly lots and enter a rounding value

1. To change a material using the stock requirements list for a material, perform one of the following: 

Enter transaction code MD04.

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Select the SAP menu path: Logistics  Production  Production Planning  MRP  Evaluations  Stock/Requirements List

2. Enter the Material Number and Plant and press Enter.

3. Select the menu path Environment  Change Material.

4. Enter the Lot Size for Monthly lot size and the rounding value, and click the button to return back to the stock requirements list.

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Unit 4: Materials Requirement Planning

Step 3: Create Demand for Material 1. To create demand for a material, perform one of the following: 

Enter transaction code MD64.



Select the SAP menu path: Logistics  Production  Production Planning  Demand Management  Planned Independent Requirements  Create

2. Enter the Material Number and Plant and the press Enter.

3. Enter the demand for the next six months and click the

button.

Step 4: Run single-item, single-level on the material 1. To run the MRP for a material, perform one of the following: 

Enter transaction code MD03.



Select the SAP menu path: Logistics  Production  MRP  Planning Single-item, single-level

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2. Enter the Material and Plant and press Enter.

3. This message is supplied to indicate that the input parameters need to be verified. Press Enter.

Step 5: Evaluate the results of materials requirement planning To review the results of the MRP run display the stock requirements list for a material, perform one of the following:

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Enter transaction code MD04.



Select the SAP menu path: Logistics  Production  Production Planning  MRP  Evaluations  Stock/Requirements List

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Unit 4: Materials Requirement Planning

4. Enter the Material Number and Plant and press Enter.

Here you can see that materials requirement planning used monthly lot size to calculate the purchase requisitions in quantity rounding values at intervals of 100.

Step 6: Change the rounding value, run single-item, single-level and review the results.

1. To change a material using the stock requirements list for a material, perform following (still in MD04):

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2. Enter the Material Number and Plant and press Enter.

3. Select the menu path Environment  Change Material.

4. Enter the new Rounding value and click the stock requirements list.

button to return back to the

5. Run single-item, single-level. 6. Evaluate the results in the stock requirements list.

The results of the calculation of the materials requirement planning used the rounding value to generate the supply requirements to meet the demand requirements.

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Unit 4: Materials Requirement Planning

Exercise: Materials Requirement Planning Calculation In this exercise, you will perform the following steps: 

Create a material master record



Assign the monthly lot size and rounding value



Create demand for the material



Run single-item, single-level on the material



Evaluate the results of materials requirement planning

1. Create a raw procured material master record.

Field

Value

Material

A-100-E-XXX (XXX is number assigned by your instructor).

Industry Sector

Mechanical Engineering

Material Type

Raw Material

Copy From

A-100-M

Views



Basic Data



Purchasing



MRP



General Plant Data / Storage



Accounting



Costing

Plant

1000

Storage Location

1000

2. Change the material master record.

Field

Value

Material

A-100-E-XXX (XXX is number assigned by your instructor).

Plant

1000

Lot Size

Monthly

Rounding Value

1000

3. Create demand requirement for the raw material.

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Field

Value

Material

A-100-E-XXX (XXX is number assigned by your instructor).

Plant

1000

Demand

Enter demand for the next three months of 1500 pieces.

4. Run Single-Item, Single-Level on the material.

Field

Value

Material

A-100-E-XXX (XXX is number assigned by your instructor).

Plant

1000

5. Review the stock requirements for the raw material in the stock requirements list.

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Field

Value

Material

A-100-E-XXX (XXX is number assigned by your instructor).

Plant

1000

Procurement Proposals

Do you have an overage in stock after the requirements?

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Material Requirements Planning File The material requirements planning file is used to determine which materials to plan and how to plan each material within the planning file. As previously seen, below is the flow of the planning file within materials requirement planning.

The flags set in the planning file determine the status of the material for materials requirement planning. The following flags are set in the planning file: 

Record Type – defines if the material is an MRP material or a phantom assembly.



Code – is the low level code used to determine the level of the material during bill of material explosion and thus determines the sequence of planning the material during materials requirement planning.



Material – is the material number.



MRP area – is the area in which the material is planned.



MPS Indicator – defines the material to only be planned using master production scheduling.



Net Change Planning Indicator – determines when there is a change to a material so the material will be planned during a net change run of materials requirement planning. This flag is set if the a goods receipt occurs for the material, if a reservation, purchase order or production order exist and if the goods movement takes place in a MRP storage location.



Net Change Planning Indicator in the planning horizon – determines when there is a change to a material in the planning horizon so the material will be

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planned during a net change planning horizon run of materials requirement planning. This flag is set if the a goods receipt occurs for the material, if a reservation, purchase order or production order exist and if the goods movement takes place in a MRP storage location. 

Reset Procurement Proposals – defines that a change has occurred to the procurement elements to trigger materials requirement planning for these elements.



Re-explode BOM – controls that a bill of material has changed and the bill of material should be re-exploded during the next run of materials requirement planning.



Planning Date – is the next date to plan the material in time-phased planning.

In this section, we will review the planning file entries and will review the configuration to activate the system to use the planning file and we will also review the conversion program if MRP areas are turn on in an environment.

Demonstration: Material Requirements Planning File The materials requirements planning file demonstration displays the planning file entries to review the selections available and to review the flags in the planning file.

Planning File Entries 1. To display the planning file entries, perform one of the following:

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Enter transaction code MD21.



Select the SAP menu path: Logistics  Production  MRP  Planning  Planning File Entry  Display.

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2. Enter the Plant, leave the defaults, and click the

button.

Configuration: Material Requirements Planning File In this configuration demonstration we will review the activation step for the planning file, determine goods movements for the planning file and review options for the planning file when converting to MRP areas. Materials Requirement Planning ECC 6.0

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Activate MRP and Set Up Planning File This setting activates the planning file and activates materials requirement planning. 1. From the IMG, select the menu path: Production  Material Requirements Planning  Planning File Entries  Activate MRP and Set Up Planning File

Define Planning File entries for goods movements This setting allows you to always set a planning file entry for any goods movement or set over and under delivery tolerances for setting goods movements to flag the planning file. 1. From the IMG, select the menu path: Production  Material Requirements Planning  Planning File Entries  Define Planning File entries for goods movements

Convert Planning File entries for MRP areas This program allows you to convert existing planning file entries with MRP areas. There is a test option and a conversion option. 1. From the IMG, select the menu path: Production  Material Requirements Planning  Planning File Entries  Convert Planning File entries for MRP areas

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Legal Speak: Purchase of this book or acquisition at an ERPtips class, constitutes an implied agreement by the purchaser to a limited, license granted to the purchaser by Klee Associates, Inc., specifically for purposes limited to improving your personal knowledge of SAP software which does not in any way compete with Klee Associates. This manual is protected by copyright law, and is sold or is part of an ERPtips class with the following conditions: The manual will be used for your personal professional development. The manual will not be physically copied for distribution to other individuals or converted to an electronic copy for distribution to other individuals, unless copyright permissions for copying have been acquired from Klee Associates, Inc. The manual will not be used to conduct training classes by you or other individuals, without the written permission of Klee Associates, Inc. Inclusion of the concepts in this book in any internal client training material is allowed if the source of the concepts is acknowledged as follows:

Copyright 2010 All rights reserved. Used with permission. Klee Associates, Inc.

NO WARRANTY: This documentation is delivered as is, and Klee Associates makes no warranty as to its accuracy or use. Any use of this documentation is at the risk of the user. Although we make every good faith effort to ensure accuracy, this document may include technical or other inaccuracies or typographical errors. Klee Associates reserves the right to make changes without prior notice. ERPtips is a valued resource for thousands of clients and consultants worldwide. Visit our web site for more information about upcoming training, books, and newsletters. www.ERPtips.com

ERPtips is a registered trademark of Klee Associates, Inc. No Affiliation: Klee Associates, Inc. and this publication are not affiliated with or endorsed by SAP AG. SAP AG software referred to on this site is furnished under license agreements between SAP AG and its customers and can be used only within the terms of such agreements. SAP AG is a registered trademark of SAP AG. All other product names used herein are trademarks or registered trademarks of their respective owners.

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