How To Fix CNV_21539012 - Multiple lines with MOABW &1 and old attendance/absence type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21539 - Absence Type Rename

• Message number: 012

• Message text: Multiple lines with MOABW &1 and old attendance/absence type &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_21539012 - Multiple lines with MOABW &1 and old attendance/absence type &2 ?

  The SAP error message CNV_21539012 typically occurs during data migration or conversion processes, particularly when dealing with attendance and absence records in the SAP system. This error indicates that there are multiple entries for the same combination of "MOABW" (which refers to the attendance/absence type) and an old attendance/absence type, leading to a conflict or inconsistency in the data.
  Cause:
  
  Duplicate Entries: The primary cause of this error is the presence of multiple records in the source data that have the same attendance/absence type and old attendance/absence type. This can happen if the data was not cleaned or validated before migration.
  Data Mapping Issues: There may be issues with how the old attendance/absence types are mapped to the new types in the target system.
  Configuration Errors: Incorrect configuration in the SAP system regarding attendance and absence types can also lead to this error.
  
  Solution:
  
  Data Cleansing: Review the source data for duplicates. Identify and resolve any duplicate entries for the same combination of MOABW and old attendance/absence type. This may involve consolidating records or removing unnecessary duplicates.
  Mapping Validation: Ensure that the mapping of old attendance/absence types to new types is correct. Check the mapping tables and make sure that each old type corresponds to a unique new type.
  Configuration Check: Verify the configuration settings in the SAP system related to attendance and absence types. Ensure that they are set up correctly and that there are no conflicts.
  Use of Migration Tools: If you are using SAP's migration tools (like LSMW or SAP S/4HANA Migration Cockpit), ensure that the settings and parameters are correctly defined to handle the data without conflicts.
  Testing: After making the necessary changes, perform a test migration to ensure that the error does not occur again.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Review SAP documentation on data migration best practices, especially concerning attendance and absence types.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By addressing the root causes and following the suggested solutions, you should be able to resolve the CNV_21539012 error effectively.