How To Fix MA371 - Lot size interval overlaps with the alternative from & to &

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 371

• Message text: Lot size interval overlaps with the alternative from & to &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA371 - Lot size interval overlaps with the alternative from & to & ?

  The SAP error message MA371 indicates that there is a conflict in the lot size intervals defined for a material in the system. Specifically, it means that the lot size interval you are trying to define overlaps with an existing lot size interval for the same material. This can occur when you are trying to set up or modify the lot size settings in the material master or in the production planning settings.
  Cause:
  
  Overlapping Lot Size Intervals: The lot size intervals you are trying to create or modify overlap with existing intervals. For example, if you have an existing interval of 10-20 and you try to create a new interval of 15-25, this will trigger the error.
  Incorrect Configuration: The configuration of lot sizes in the material master or in the production planning settings may not be set up correctly, leading to overlaps.
  Multiple Entries: There may be multiple entries for the same material that have overlapping intervals.
  
  Solution:
  
  Review Existing Lot Size Intervals: Check the existing lot size intervals for the material in question. You can do this by navigating to the material master (transaction code MM03) and reviewing the lot size settings.
  Adjust Intervals: Modify the new lot size interval you are trying to create so that it does not overlap with existing intervals. Ensure that the intervals are distinct and do not share any values.
  Delete or Modify Conflicting Entries: If there are unnecessary or incorrect entries that are causing the overlap, consider deleting or modifying them to resolve the conflict.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to properly set up lot size intervals.
  Testing: After making changes, test the configuration to ensure that the error does not occur again.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM03 (Display Material), MM02 (Change Material), or MD02 (MDM - MRP Run) to manage material master data and check lot size settings.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to lot size intervals and this specific error message.
  User Roles: Ensure that you have the necessary permissions to make changes to the material master data, as restrictions may prevent you from modifying certain settings.
  
  By following these steps, you should be able to resolve the MA371 error and properly configure the lot size intervals for your materials in SAP.