How To Fix M2401 - No characteristic update rules exist for reference & &

M2401 - Overview

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 401

• Message text: No characteristic update rules exist for reference & &

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M2401 - No characteristic update rules exist for reference & & ?

  The SAP error message M2401, which states "No characteristic update rules exist for reference & &," typically occurs in the context of Material Management (MM) or Production Planning (PP) when the system is trying to update characteristics for a material or a product but cannot find the necessary update rules.
  
  Cause:
  
  Missing Update Rules: The primary cause of this error is that there are no defined characteristic update rules for the material or product in question. This can happen if the configuration for the material master or the characteristics has not been set up correctly.
  Incorrect Configuration: The configuration settings for the characteristics or the material type may not be properly defined in the system.
  Data Inconsistency: There may be inconsistencies in the data related to the material or characteristics that prevent the update rules from being applied.
  
  
  Solution:
  
  
  Check Characteristic Update Rules:
  
  Go to the transaction code CT04 (Characteristic) or CT05 (Characteristic Groups) in SAP.
  Verify if