How To Fix /SAPAPO/MC01306 - Check the class and char. definition in the OLTP and planning system

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 306

• Message text: Check the class and char. definition in the OLTP and planning system

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MC01306 - Check the class and char. definition in the OLTP and planning system ?

  The SAP error message /SAPAPO/MC01306 typically indicates an issue related to the characteristics and class definitions in the SAP Advanced Planning and Optimization (APO) system. This error often arises when there is a mismatch or inconsistency between the definitions in the OLTP (Online Transaction Processing) system and the APO system.
  Cause:
  
  Mismatch in Class Definitions: The characteristics or classes defined in the OLTP system do not match those in the APO system. This can happen if changes were made in one system but not replicated in the other.
  Missing Characteristics: The characteristics that are expected in the APO system may not be defined in the OLTP system.
  Inconsistent Data: There may be inconsistencies in the data related to the characteristics or classes, such as incorrect data types or missing values.
  Transport Issues: If changes were transported from one system to another, there may have been issues during the transport process that led to incomplete or incorrect data.
  
  Solution:
  
  
  Check Class and Characteristic Definitions:
  
  Go to the OLTP system and check the class and characteristic definitions. Ensure that they are correctly defined and match what is expected in the APO system.
  Use transaction codes like CL02 (Change Class) and CT04 (Change Characteristic) to review the definitions.
  
  
  
  Synchronize Definitions:
  
  If you find discrepancies, update the definitions in either the OLTP or APO system to ensure they match.
  You may need to create or modify characteristics or classes in one of the systems.
  
  
  
  Transport Changes:
  
  If changes were made in the OLTP system, ensure that they are properly transported to the APO system. Check the transport logs for any errors or warnings.
  
  
  
  Consistency Check:
  
  Use transaction /SAPAPO/MC_CHECK to perform a consistency check between the OLTP and APO systems. This can help identify any inconsistencies that need to be addressed.
  
  
  
  Re-activate Planning Object:
  
  If the issue persists, consider re-activating the planning object in the APO system. This can sometimes resolve issues related to outdated or inconsistent data.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed information on class and characteristic management in both OLTP and APO systems.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message. SAP Notes often provide solutions or workarounds for known issues.
  Support: If the problem cannot be resolved, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the steps you have taken to troubleshoot.
  
  By following these steps, you should be able to identify and resolve the issue causing the /SAPAPO/MC01306 error message.