How To Fix /PM0/AB_IBC_CNFG_I_C158 - More than one active namespace was found (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/AB_IBC_CNFG_I_C -

• Message number: 158

• Message text: More than one active namespace was found (&1)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/AB_IBC_CNFG_I_C158 - More than one active namespace was found (&1) ?

  The SAP error message /PM0/AB_IBC_CNFG_I_C158 indicates that there is more than one active namespace found in the system, which is causing a conflict. This error typically arises in the context of SAP Integrated Business Planning (IBP) or other applications that rely on namespaces for configuration and data management.
  Cause:
  
  Multiple Active Namespaces: The primary cause of this error is the presence of multiple active namespaces in the system. In SAP, namespaces are used to organize and manage objects, and having more than one active namespace can lead to ambiguity in object references.
  Configuration Issues: This can occur due to incorrect configuration settings or changes made to the system that have not been properly managed.
  Transport Issues: If transports have been incorrectly imported or if there are inconsistencies between development and production environments, this error may arise.
  
  Solution:
  
  Identify Active Namespaces: Use transaction codes like SE03 (Transport Organizer Tools) or SE80 (Object Navigator) to check the active namespaces in your system. Identify the namespaces that are causing the conflict.
  Deactivate Unused Namespaces: If you find that there are namespaces that are not in use, consider deactivating them. This can usually be done through the namespace management settings in the SAP system.
  Check Configuration Settings: Review the configuration settings related to namespaces in your IBP or relevant application. Ensure that only the necessary namespaces are active.
  Consult Documentation: Refer to SAP documentation or notes related to namespaces and configuration for specific guidance on managing namespaces in your version of SAP.
  Contact SAP Support: If the issue persists or if you are unsure about making changes, it may be best to contact SAP support for assistance. They can provide guidance based on your specific system configuration and version.
  
  Related Information:
  
  Namespace Management: Understanding how namespaces work in SAP is crucial. Namespaces are typically defined during the development phase and can be managed through the SAP GUI.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the error and ensure that your SAP system is configured correctly with respect to namespaces.