How To Fix WW067 - Internal error locking MG reference material &

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 067

• Message text: Internal error locking MG reference material &

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

INCLUDE ISR_WIEDERHOLEN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW067 - Internal error locking MG reference material & ?

  The SAP error message WW067, which indicates an "Internal error locking MG reference material," typically arises in the context of material management and inventory processes. This error can occur due to various reasons, including issues with data consistency, locking mechanisms in the database, or problems with the material master records.
  Causes:
  
  Database Locking Issues: The error may occur if there is a conflict in database locks, where one process is trying to access a material that is already locked by another process.
  Data Inconsistency: If there are inconsistencies in the material master data or related tables, it can lead to internal errors.
  System Bugs: Occasionally, this error can be triggered by bugs in the SAP system or specific transactions.
  User Authorizations: Insufficient authorizations for the user trying to access or modify the material can also lead to this error.
  
  Solutions:
  
  Check Locks: Use transaction code SM12 to check for any active locks on the material. If you find locks that are no longer needed, you can delete them (ensure you have the necessary authorizations to do so).
  Consistency Check: Run a consistency check on the material master data using transaction code MM02 or MM03 to ensure that the data is correct and complete.
  Review Authorizations: Ensure that the user has the necessary authorizations to access and modify the material. You can check this using transaction code SU53 after the error occurs.
  System Logs: Check the system logs (transaction code SM21) for any related error messages that might provide more context about the issue.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error. There may be patches or updates available that resolve the issue.
  Restart the Transaction: Sometimes, simply restarting the transaction or logging out and back into the system can resolve temporary issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, MM03, SM12, SM21, and SU53.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you suspect a bug or require deeper analysis.
  Documentation: Review SAP documentation related to material management and error handling for additional insights.
  
  If you continue to experience issues after trying these solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.