How To Fix /SAPAPO/CAL051 - Calendar &1: data inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CAL -

• Message number: 051

• Message text: Calendar &1: data inconsistent

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 /SAPAPO/CAL051 - Calendar &1: data inconsistent ?

  The SAP error message /SAPAPO/CAL051 Calendar &1: data inconsistent typically indicates that there is an inconsistency in the calendar data for the specified calendar ID (&1). This error is often encountered in the context of SAP Advanced Planning and Optimization (APO) when dealing with planning calendars, which are crucial for scheduling and planning activities.
  Causes:
  
  Missing or Incorrect Calendar Entries: The calendar may have missing entries or incorrect configurations, such as holidays or working days that are not properly defined.
  Data Corruption: There may be corruption in the calendar data due to system errors or issues during data migration.
  Inconsistent Time Periods: The calendar may have overlapping or conflicting time periods that lead to inconsistencies.
  Custom Modifications: If there have been custom modifications or enhancements to the calendar functionality, these could lead to inconsistencies.
  
  Solutions:
  
  
  Check Calendar Configuration:
  
  Go to the transaction code /SAPAPO/CAL to access the calendar maintenance screen.
  Verify that all entries (working days, holidays, etc.) are correctly defined and that there are no overlaps or gaps.
  
  
  
  Recreate the Calendar:
  
  If the calendar is found to be corrupted or inconsistent, consider recreating it from scratch. This may involve deleting the existing calendar and creating a new one with the correct settings.
  
  
  
  Consistency Check:
  
  Use the transaction code /SAPAPO/CALC to perform a consistency check on the calendar data. This can help identify specific issues that need to be addressed.
  
  
  
  Review Custom Code:
  
  If there are custom developments related to calendar handling, review the code to ensure it does not introduce inconsistencies.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address known issues related to calendar inconsistencies.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  /SAPAPO/CAL: Calendar maintenance
  /SAPAPO/CALC: Calendar consistency check
  
  
  Documentation: Refer to SAP Help documentation for detailed information on calendar configuration and management in SAP APO.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the inconsistency in the calendar data that is causing the error message /SAPAPO/CAL051.