How To Fix KU121 - Summarization period of time incorrect or missing

SAP Error Message - Details

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 121

• Message text: Summarization period of time incorrect or missing

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message KU121 - Summarization period of time incorrect or missing ?

  The SAP error message KU121, which states "Summarization period of time incorrect or missing," typically occurs in the context of the Controlling (CO) module, particularly when dealing with cost center accounting or internal orders. This error indicates that the system is unable to process a summarization request due to an issue with the specified time period.
  Causes:
  
  Missing Summarization Period: The summarization period may not have been defined in the system for the specific reporting or processing you are attempting.
  Incorrect Date Format: The dates provided for the summarization period may not be in the correct format or may not align with the expected fiscal periods.
  Invalid Period: The specified summarization period may fall outside of the valid fiscal year or period defined in the system.
  Configuration Issues: There may be configuration settings in the controlling area or related modules that are not set up correctly.
  
  Solutions:
  
  Check Summarization Period: Ensure that the summarization period is defined correctly in the system. You can do this by navigating to the relevant configuration settings in the CO module.
  Verify Date Format: Make sure that the dates you are entering for the summarization period are in the correct format and correspond to the fiscal calendar set up in your SAP system.
  Review Fiscal Year Settings: Check the fiscal year settings in the system to ensure that the summarization period you are trying to use is valid and exists in the system.
  Configuration Review: If you have access, review the configuration settings for the controlling area and ensure that all necessary parameters are set correctly.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the summarization process and any prerequisites that need to be met.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like KSB1 (Cost Centers: Actual Line Items) or KOB1 (Orders: Actual Line Items) to analyze the data related to the summarization.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to access the relevant data and perform the summarization process.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP CO for further assistance.