How To Fix MD454 - Define traffic light for exception groups. Press F1 for more information

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 454

• Message text: Define traffic light for exception groups. Press F1 for more information

How to fix this error?

This is where you use exception groups to define under which
circumstances materials are indicated by red, yellow, or green traffic
lights in the MRP list and the stock/requirements list.
Example:
You want yellow traffic lights to indicate materials with exception
messages for exception group 4, and red traffic lights to indicate
materials with exceptions messages for exception group 5.
You define the following:
,,,,,,,,,,Red,,,,Yellow,,Green
Exception group 4:,,,,,,X
Exception group 5:,,X

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The traffic light for the material is set after the settings for all
days' supplies and all exceptions groups have been taken into
consideration.
Example:
A material with exception messages for exception group 4 and exception
group 5 would be indicated by a red traffic light in the example above,
as red traffic lights have a higher priority than the yellow traffic
lights.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD454 - Define traffic light for exception groups. Press F1 for more information ?

  The SAP error message MD454, which states "Define traffic light for exception groups," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) module, particularly when dealing with exception management in planning scenarios.
  Cause:
  This error arises when the system expects you to define a "traffic light" (a visual indicator) for exception groups in the planning environment, but it has not been configured. Traffic lights are used to visually represent the status of exceptions (e.g., red for critical issues, yellow for warnings, and green for normal conditions) to help planners quickly assess the situation.
  Solution:
  To resolve this error, you need to define the traffic light settings for the exception groups. Here are the steps to do this:
  
  
  Access the Configuration:
  
  Go to the SAP Easy Access screen.
  Navigate to the following path: SAP APO -> Supply Chain Planning -> Global Settings -> Exception Management -> Define Traffic Light for Exception Groups.
  
  
  
  Define Traffic Light Settings:
  
  In the configuration screen, you will see a list of exception groups.
  Select the exception group for which you want to define the traffic light settings.
  Specify the criteria for the traffic light colors (e.g., thresholds for what constitutes a red, yellow, or green status).
  Save your changes.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to make changes in the configuration settings.
  
  
  
  Test the Configuration:
  
  After defining the traffic light settings, run the planning process again to see if the error persists.
  
  
  
  Related Information:
  
  Traffic Light Concept: The traffic light system is a common visual management tool used in various SAP modules to provide quick insights into the status of processes or data.
  Exception Management: Exception management in SAP APO helps planners identify and address issues that may affect supply chain performance.
  F1 Help: Pressing F1 on the error message in SAP will provide you with additional context and information about the error, including possible actions you can take.
  
  If you continue to experience issues after following these steps, consider consulting with your SAP Basis or APO functional team for further assistance.