How To Fix MILL_PC320 - Master record for original batch &1 locked by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_PC - Mill: Message Pool for Confirmations

• Message number: 320

• Message text: Master record for original batch &1 locked by &2

copied from HM6

What causes this issue?

The batch master record of original batch &V1& is currently bein
processed by user &V2&.

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?

Try to process the batch master record of the original batch later.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MILL_PC320 - Master record for original batch &1 locked by &2 ?

  The SAP error message "MILL_PC320 Master record for original batch &1 locked by &2" typically occurs in the context of batch management in SAP, particularly when dealing with production or inventory processes. This error indicates that the master record for a specific batch (identified by &1) is currently locked by another user or process (identified by &2), preventing the current operation from proceeding.
  Cause:
  
  Concurrent Access: Another user or process is currently accessing or modifying the master record for the specified batch. This could happen if multiple users are trying to perform operations on the same batch simultaneously.
  Long-running Transactions: A transaction that takes a long time to complete may hold a lock on the batch record longer than expected.
  System Configuration: Certain configurations in the system may lead to locks being held longer than necessary.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for locks on the batch record. You can search for the batch number to see which user or process is holding the lock.
  Wait and Retry: If the lock is held by another user, you may need to wait until that user completes their transaction. You can retry your operation after some time.
  Contact the User: If you identify the user holding the lock and it is appropriate, you can contact them to understand why the lock is in place and if they can release it.
  Release the Lock: If you have the necessary authorizations and determine that the lock is no longer needed (e.g., the user is inactive), you can manually release the lock using transaction SM12. Be cautious with this approach, as it may lead to data inconsistencies if the other user is still working on the record.
  Review System Performance: If locks are a frequent issue, consider reviewing system performance and transaction handling to optimize how locks are managed.
  
  Related Information:
  
  Batch Management: Understanding how batch management works in SAP can help in troubleshooting issues related to batch records.
  User Authorizations: Ensure that users have the appropriate authorizations to access and modify batch records to minimize conflicts.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to analyze dumps) for further troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to batch management and locking mechanisms.
  
  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.