How To Fix MK048 - Entry for key characteristic &1 and material &2 already exists

MK048 - Overview

• Message type: E = Error

• Message class: MK - Mass Handling in the Material Master

• Message number: 048

• Message text: Entry for key characteristic &1 and material &2 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MK048 - Entry for key characteristic &1 and material &2 already exists ?

  The SAP error message MK048 indicates that there is an attempt to create or modify a record in the system where a key characteristic for a specific material already exists. This typically occurs in the context of material master data, particularly when dealing with characteristics and classifications in the SAP system.
  
  Cause:
  The error occurs when:
  
  You are trying to assign a characteristic to a material that has already been assigned.
  There is a duplicate entry for the combination of the characteristic and the material in the classification system.
  The system enforces uniqueness for the combination of characteristics and materials, and the entry you are trying to create violates this rule.
  
  
  Solution:
  To resolve the MK048 error, you can take the following steps:
  
  
  Check Existing Entries:
  
  Use transaction codes like MM03 (Display Material) or CL03 (Display Class) to check if the characteristic is already assigned to the material.
  Look for the specific characteristic and material combination that is causing the