How To Fix OH026 - Collective processing not possible due to processing by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 026

• Message text: Collective processing not possible due to processing by user &

What causes this issue?

Several objects are to be processed in parallel (copy, delete, and so
on). In this case, no other user may process these objects in the same
controlling area or chart of accounts. User &V1&, however, is
processing groups in the same controlling area/chart of accounts
(&V2&).

System Response

The function is not executed.

How to fix this error?

Perform the required function later or get user &V1& to complete his
processing session.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OH026 - Collective processing not possible due to processing by user & ?

  The SAP error message OH026, which states "Collective processing not possible due to processing by user &," typically occurs when a user attempts to perform a collective processing operation (such as collective processing of orders, deliveries, or other objects) while another user is already processing the same data. This is a locking mechanism in SAP to prevent data inconsistencies and ensure data integrity.
  Cause:
  
  User Locking: Another user is currently processing the same data or object, which locks it for collective processing.
  Long-running Transactions: If a transaction takes a long time to complete, it can block other users from accessing the same data.
  System Configuration: Certain configurations in the system may lead to locking issues.
  
  Solution:
  
  Identify the User: Check which user is currently processing the data. You can use transaction code SM12 to view and manage user locks. Look for the user indicated by the error message.
  Wait for Completion: If the other user is performing a legitimate operation, wait for them to complete their task.
  Terminate the Session: If the other user is not actively working or if the session is stuck, you may need to terminate their session. This should be done with caution and typically requires appropriate authorizations.
  Check for Long-running Jobs: Use transaction code SM37 to check for any long-running jobs that might be causing the lock.
  Review System Configuration: If this issue occurs frequently, review the system configuration and locking mechanisms to ensure they are set up correctly.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage user locks.
  SM37: To monitor background jobs.
  SM21: To check system logs for any related issues.
  
  
  Documentation: Refer to SAP Help documentation for more details on collective processing and locking mechanisms.
  Support: If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.
  
  Best Practices:
  
  Encourage users to communicate when performing operations that may lock data.
  Monitor and optimize long-running transactions to minimize locking issues.
  Regularly review user access and permissions to ensure that only authorized users can perform critical operations. 
  
  By following these steps, you should be able to resolve the OH026 error and prevent it from occurring in the future.