How To Fix /SAPAPO/RET_MESSAGES009 - Calculation not possible for at least one period because of calendar

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 009

• Message text: Calculation not possible for at least one period because of calendar

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES009 - Calculation not possible for at least one period because of calendar ?

  The SAP error message /SAPAPO/RET_MESSAGES009 indicates that a calculation cannot be performed for at least one period due to calendar-related issues in the SAP Advanced Planning and Optimization (APO) module. This error typically arises in the context of demand planning, supply network planning, or similar planning processes where time periods are critical.
  Causes:
  
  Calendar Configuration Issues: The calendar settings in the system may not be properly configured. This includes issues with holidays, working days, or non-working periods that are not defined correctly.
  Missing Time Periods: The planning calendar may not have the required time periods defined for the calculations to take place.
  Data Inconsistencies: There may be inconsistencies in the data related to the planning calendar, such as overlapping periods or gaps in the calendar.
  Planning Version Issues: The planning version being used may not have the correct calendar settings or may be inactive.
  Time Bucket Configuration: The time buckets defined for the planning process may not align with the calendar settings.
  
  Solutions:
  
  
  Check Calendar Settings: Review the calendar settings in the SAP system. Ensure that all relevant holidays, working days, and non-working periods are correctly defined.
  
  Transaction Code: /SAPAPO/CALENDAR can be used to check and maintain calendar settings.
  
  
  
  Validate Time Periods: Ensure that the time periods required for the calculations are defined in the planning calendar.
  
  Check if the planning horizon is set correctly and includes all necessary periods.
  
  
  
  Review Planning Version: Make sure that the planning version you are using is active and has the correct calendar settings.
  
  You can check this in the planning version settings.
  
  
  
  Check Data Consistency: Run consistency checks on the data to identify any inconsistencies that may be causing the issue.
  
  Use transaction codes like /SAPAPO/DP for demand planning or /SAPAPO/SNP for supply network planning to check for data issues.
  
  
  
  Adjust Time Buckets: If you are using time buckets, ensure that they are configured to align with the calendar settings. Adjust the time bucket settings if necessary.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Testing: After making changes, perform tests to ensure that the calculations can now be executed without errors.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the /SAPAPO/RET_MESSAGES009 error in your SAP system.