How To Fix /PLMI/RCP_MIGRATION836 - Class &1 of class type &2 is not mapped

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/RCP_MIGRATION -

• Message number: 836

• Message text: Class &1 of class type &2 is not mapped

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/RCP_MIGRATION836 - Class &1 of class type &2 is not mapped ?

  The SAP error message /PLMI/RCP_MIGRATION836 Class &1 of class type &2 is not mapped typically occurs during the migration or data transfer processes in SAP, particularly when dealing with classification data. This error indicates that a specific class (identified by &1) of a certain class type (identified by &2) is not properly mapped in the system.
  Cause:
  
  Missing Mapping: The class you are trying to use is not mapped to a corresponding class in the target system or the migration process.
  Configuration Issues: There may be configuration issues in the classification system where the class types are not defined or linked correctly.
  Data Inconsistencies: The data being migrated may contain references to classes that do not exist in the target system.
  
  Solution:
  
  
  Check Class Mapping:
  
  Go to the transaction code CL02 (Change Class) or CL01 (Create Class) to verify if the class &1 exists in the system.
  Ensure that the class type &2 is correctly defined and that the class is mapped to the appropriate type.
  
  
  
  Update Mapping Tables:
  
  If you are using a migration tool or program, check if there are mapping tables that need to be updated to include the missing class and class type.
  You may need to create a mapping entry for the class in the relevant configuration settings.
  
  
  
  Data Validation:
  
  Validate the data being migrated to ensure that all classes referenced exist in the target system.
  If necessary, clean up the data to remove references to non-existent classes.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific migration process you are performing. There may be specific instructions or prerequisites that need to be followed.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or migration scenario.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01, CL02, and CL03 for class management.
  SAP Notes: Search for SAP Notes related to classification and migration issues, as they may contain patches or additional guidance.
  Migration Tools: If you are using specific migration tools (like LSMW or SAP S/4HANA Migration Cockpit), check their documentation for any specific requirements regarding class mapping.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.