How To Fix CNV10310459 - Error! Overlap of structure fields! (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV10310 - Message class for development class CNV_10310

• Message number: 459

• Message text: Error! Overlap of structure fields! (&)

Self-Explanatory Message

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• What is the cause and solution for SAP error message CNV10310459 - Error! Overlap of structure fields! (&) ?

  The SAP error message CNV10310459, which states "Error! Overlap of structure fields!", typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a conflict in the definition of fields within a structure, meaning that two or more fields are overlapping in terms of their memory allocation or data representation.
  Cause:
  
  
  Field Overlap: The error is primarily caused by two or more fields in a structure that are defined in such a way that they occupy the same memory space. This can happen if:
  
  The fields are defined with overlapping data types or lengths.
  There are changes in the data structure that have not been properly accounted for in the migration process.
  
  
  
  Incorrect Mapping: During the mapping of source fields to target fields, if the fields are not correctly aligned or if there are changes in the structure definitions, it can lead to overlaps.
  
  
  Data Type Mismatches: If the data types of the fields are not compatible or if there are changes in the underlying data model, it can cause overlaps.
  
  
  Solution:
  
  
  Review Structure Definitions: Check the definitions of the structures involved in the migration. Ensure that there are no overlapping fields. You may need to adjust the lengths or types of the fields to eliminate overlaps.
  
  
  Adjust Mapping: If you are using a migration tool, review the mapping of source to target fields. Ensure that each field is correctly mapped and that there are no conflicts.
  
  
  Data Model Changes: If there have been changes in the data model (for example, during an upgrade or migration to S/4HANA), ensure that the new definitions are correctly reflected in your migration process.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are using. There may be specific guidelines or best practices to follow.
  
  
  Testing: After making adjustments, perform a test migration to ensure that the error is resolved and that the data is being migrated correctly.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Consider searching or posting in SAP community forums or discussion groups, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for more tailored assistance.