How To Fix WW066 - MG reference material & is already being edited

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 066

• Message text: MG reference material & is already being edited

What causes this issue?

The reference material for this material group is currently being
edited.

System Response

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

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 WW066 - MG reference material & is already being edited ?

  The SAP error message WW066 indicates that a material (in this case, a reference material) is currently being edited by another user or session. This can occur in various scenarios, such as when multiple users are trying to access or modify the same material simultaneously.
  Cause:
  
  Concurrent Access: Another user is currently editing the material, which locks it for other users.
  Session Lock: The material may be locked due to an open session that has not been properly closed.
  Background Jobs: A background job might be processing the material, causing it to be locked.
  
  Solution:
  
  Wait and Retry: If another user is editing the material, you may need to wait until they finish and release the lock. You can try again after some time.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user or session is holding the lock on the material. If necessary, you can delete the lock entry (if you have the appropriate authorizations) to release it.
  Communicate with Users: If you identify the user who is editing the material, you can communicate with them to understand when they will finish their edits.
  Review Background Jobs: Check if there are any background jobs running that might be locking the material. You can use transaction code SM37 to monitor background jobs.
  Session Management: Ensure that all sessions are properly closed after use to avoid unnecessary locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SE11: To check the data dictionary for the material.
  
  
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.