How To Fix WRF_REF174 - Material attributes to reference determ. schema &4 is locked by user &3

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 174

• Message text: Material attributes to reference determ. schema &4 is locked by user &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF174 - Material attributes to reference determ. schema &4 is locked by user &3 ?

  The SAP error message WRF_REF174 indicates that a material attributes reference determination schema is locked by a specific user. This typically occurs in the context of material master data management, particularly when multiple users are trying to access or modify the same data simultaneously.
  
  Cause:
  
  User Lock: The schema is locked by another user who is currently editing or has not properly released the lock after their session.
  Session Timeout: A user may have left their session open, causing the lock to persist even if they are no longer actively working on it.
  System Error: Occasionally, system errors or crashes can lead to locks that are not released properly.
  
  
  Solution:
  
  Identify the User: Check which user is holding the lock. You can do this by using transaction code SM12 to view the lock entries. Look for the user ID mentioned in the error message.
  Contact the User: If possible, contact the user who has the lock and