How To Fix ATO_CUSTOMER129 - System is in read only mode.

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 129

• Message text: System is in read only mode.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ATO_CUSTOMER129 - System is in read only mode. ?

  The SAP error message ATO_CUSTOMER129, which indicates that the system is in "read-only mode," typically arises when the system is not allowing any changes to be made to the data. This can happen for several reasons, and understanding the cause is crucial for finding a solution. Here are some common causes, potential solutions, and related information:
  Causes:
  
  System Maintenance: The system may be undergoing maintenance or updates, which can temporarily set it to read-only mode.
  Database Lock: There may be a database lock or issue that prevents write operations.
  User Authorizations: The user may not have the necessary authorizations to make changes in the system.
  Transport Requests: If a transport request is being processed, the system may be locked for changes.
  Configuration Settings: Certain configuration settings may have been applied that restrict write access.
  System Errors: There may be underlying system errors or issues that have caused the system to enter read-only mode.
  
  Solutions:
  
  Check System Status: Verify if the system is indeed in maintenance mode. If so, wait until the maintenance is completed.
  Database Check: Consult with your database administrator to check for any locks or issues with the database.
  User Authorizations: Ensure that the user has the appropriate authorizations to perform write operations. This can be checked in the user roles and profiles.
  Transport Management: If a transport request is being processed, wait until it is completed. You can check the transport logs for more information.
  Configuration Review: Review the system configuration settings to ensure that there are no restrictions on write access.
  System Logs: Check the system logs (transaction SM21) for any errors or warnings that might indicate why the system is in read-only mode.
  Contact Support: If the issue persists, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SU53 (Authorization Check), and ST22 (Dump Analysis) to diagnose the issue.
  SAP Notes: Search for SAP Notes related to the error message ATO_CUSTOMER129 for any specific patches or updates that may address the issue.
  Documentation: Review SAP documentation for best practices on system maintenance and user authorizations.
  
  By following these steps, you should be able to identify the cause of the read-only mode and implement the appropriate solution.