How To Fix CNV_10020769 - &1, &2: Length of source field/obj. &3 and SDetObject &4 differ

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 769

• Message text: &1, &2: Length of source field/obj. &3 and SDetObject &4 differ

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020769 - &1, &2: Length of source field/obj. &3 and SDetObject &4 differ ?

  The SAP error message CNV_10020769 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 mismatch in the length of the source field or object compared to the target structure or object.
  Cause:
  The error message CNV_10020769 is triggered when:
  
  The length of a source field (or object) does not match the expected length in the target structure.
  There may be a discrepancy in the data types or lengths defined in the source and target systems.
  The data being migrated may contain values that exceed the defined length in the target structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Field Lengths: 
  
  Review the source and target field definitions to ensure that the lengths match. This can be done by checking the data dictionary (SE11) for both the source and target structures.
  
  
  
  Adjust Source Data:
  
  If the source data contains values that exceed the target field length, you may need to truncate or modify the data in the source system before migration.
  
  
  
  Modify Target Structure:
  
  If appropriate, consider adjusting the target structure to accommodate the source data. This may involve increasing the length of the target field.
  
  
  
  Data Mapping:
  
  Ensure that the data mapping between the source and target is correctly defined. This includes checking any transformation rules that may affect the length of the data being migrated.
  
  
  
  Testing:
  
  After making adjustments, perform a test migration with a small subset of data to verify that the issue has been resolved.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary), SE37 (Function Modules), or ST22 (Dump Analysis) to investigate further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, review the migration object definitions and mappings to ensure they are correctly set up.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to successfully complete your data migration.