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

MD489 - Overview

• 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.

MD489 - Details

• 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.