How To Fix /SAPAPO/OM_TS101 - Registered read-only object changed in parallel

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_TS -

• Message number: 101

• Message text: Registered read-only object changed in parallel

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_TS101 - Registered read-only object changed in parallel ?

  The SAP error message /SAPAPO/OM_TS101 Registered read-only object changed in parallel typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an attempt to modify a data object that has been registered as read-only. This can happen in scenarios where multiple users or processes are trying to access or modify the same data simultaneously, leading to conflicts.
  Cause:
  
  Concurrent Access: The most common cause of this error is that multiple users or processes are trying to access or modify the same object at the same time. One user may have the object open for editing while another tries to read or modify it.
  Data Locking: SAP uses locking mechanisms to prevent data inconsistencies. If a read-only object is locked by one session and another session tries to change it, this error can occur.
  Background Jobs: If a background job is running that modifies the same data while a user is trying to access it, this can lead to the error.
  System Performance Issues: Sometimes, performance issues can lead to delays in data processing, causing conflicts in data access.
  
  Solution:
  
  Refresh the Data: If you encounter this error, try refreshing the data or reloading the transaction. This can help in cases where the data has changed since it was last loaded.
  Check for Locks: Use transaction codes like SM12 to check for locks on the object. If you find locks that are no longer needed, you can release them (with caution).
  Avoid Concurrent Modifications: Ensure that users are not trying to modify the same object simultaneously. Implementing proper user training and communication can help mitigate this issue.
  Review Background Jobs: Check if any background jobs are running that might be affecting the data. If necessary, schedule these jobs during off-peak hours.
  Increase System Resources: If the issue is related to system performance, consider optimizing the system resources or reviewing the configuration to handle concurrent access better.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently releases updates that may address known issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to investigate further.
  Documentation: Review SAP documentation related to APO and data locking mechanisms to understand how to manage concurrent access effectively.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation and resolution.