How To Fix MD489 - Range of coverage (yellow) may not be less than range of coverage (red)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 489

• Message text: Range of coverage (yellow) may not be less than range of coverage (red)

What causes this issue?

The days' supply (yellow) is less that the days' supply (red).

System Response

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

How to fix this error?

Please maintain the values for the days' supply in such a way that the
days' supply (yellow) is not less than the days' supply (red).
Example:
For materials with days' supply less than 10 days, the traffic light
should be red.
For materials with days' supply greater than 10 days and less than 20
days, the traffic light should be yellow.
For materials with days' supply greater than 20 days, the traffic light
should be green.
,,,,,,,,,,,,Red,,,,Yellow,,Green
Days' supply:,,,,,,10,,,,20,,,,999,9
Receipt days' supply 1:,,10,,,,20,,,,999,9
Receipt days' supply 2:,,10,,,,20,,,,999,9

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 MD489 - Range of coverage (yellow) may not be less than range of coverage (red) ?

  The SAP error message MD489 indicates an issue with the coverage range settings in the Material Requirements Planning (MRP) module. Specifically, it means that the range of coverage defined in the system (yellow) is less than the range of coverage that is required (red). This can lead to potential issues in inventory management and planning.
  Cause:
  
  Configuration Error: The coverage profile settings for the material may not be correctly configured. The yellow range of coverage is typically set to define how far into the future the system should plan for inventory, while the red range indicates the minimum required coverage.
  Data Entry Mistake: There may have been an error in entering the coverage values for the material in the material master or MRP settings.
  Inconsistent Settings: The settings for different materials or plants may not be consistent, leading to conflicts in the planning parameters.
  
  Solution:
  
  
  Review Coverage Profile: Check the coverage profile assigned to the material. Ensure that the yellow range of coverage is set to a value that is greater than or equal to the red range of coverage.
  
  Navigate to the material master (transaction code MM03) and check the MRP views.
  Look for the coverage profile settings and adjust them as necessary.
  
  
  
  Adjust MRP Settings: If the coverage profile is correct, review the MRP settings for the plant and material. Ensure that the planning parameters are consistent and appropriate for the material's demand and supply situation.
  
  Use transaction code OMDU to check and adjust the MRP settings.
  
  
  
  Consult Documentation: Refer to SAP documentation or help files for guidance on setting up coverage profiles and MRP parameters correctly.
  
  
  Testing: After making adjustments, run a new MRP run (transaction code MD02 or MD03) to see if the error persists.
  
  
  Consult with SAP Support: If the issue continues after making the necessary adjustments, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  MRP Configuration: Understanding how MRP works in SAP and the importance of coverage profiles can help prevent similar issues in the future.
  Material Master Data: Ensure that all relevant data in the material master is accurate and up-to-date.
  Training: Consider training for users involved in MRP and inventory management to minimize data entry errors and improve understanding of the system.
  
  By addressing the configuration and ensuring that the coverage ranges are set correctly, you can resolve the MD489 error and improve your MRP processes.