How To Fix KM3121 - Please choose a run at first

SAP Error Message - Details

• Message type: E = Error

• Message class: KM3 -

• Message number: 121

• Message text: Please choose a run at first

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KM3121 - Please choose a run at first ?

  The SAP error message KM3121 ("Please choose a run at first") typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with the execution of certain reports or transactions that require a specific run or selection to be made before proceeding.
  Cause:
  The error message KM3121 is usually triggered when a user attempts to execute a report or transaction that requires a predefined selection or run (such as a planning run, actual data run, or a specific period) without having made that selection first. This can happen in various scenarios, such as:
  
  Trying to execute a report without selecting a planning version or a specific run.
  Attempting to access data that is dependent on a previous execution or run that has not been defined.
  
  Solution:
  To resolve the KM3121 error, follow these steps:
  
  
  Select the Required Run: Before executing the report or transaction, ensure that you have selected the appropriate run or version. This may involve:
  
  Choosing a specific planning version.
  Selecting a period or fiscal year.
  Specifying any other required parameters that define the run.
  
  
  
  Check Configuration: If you are unsure about what run to select, consult with your SAP administrator or refer to the documentation for the specific report or transaction you are trying to execute. There may be specific configurations or settings that need to be in place.
  
  
  Review User Permissions: Ensure that you have the necessary permissions to access the data or reports you are trying to run. Sometimes, lack of access can lead to confusion about what selections are available.
  
  
  Consult Documentation: If the error persists, refer to SAP documentation or help resources for the specific transaction or report. There may be additional steps or prerequisites that need to be fulfilled.
  
  
  Contact Support: If you are still unable to resolve the issue, consider reaching out to your organization's SAP support team or SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to planning, reporting, or data analysis in the CO module.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  User Training: Ensure that users are trained on how to properly execute reports and understand the importance of selecting the correct run or version.
  
  By following these steps, you should be able to resolve the KM3121 error and successfully execute the desired report or transaction in SAP.