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

OH026 - Overview

• 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.

OH026 - Details

• 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