How To Fix CFD_RUNTIME056 - Assigning target control structure from data transfer &1 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_RUNTIME - Custom Fields: Runtime Data

• Message number: 056

• Message text: Assigning target control structure from data transfer &1 failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CFD_RUNTIME056 - Assigning target control structure from data transfer &1 failed ?

  The SAP error message CFD_RUNTIME056, which states "Assigning target control structure from data transfer &1 failed," typically occurs during data transfer processes in SAP, particularly when using the SAP Data Transfer Workbench or similar tools. This error indicates that there is a mismatch or issue with the data structure being transferred to the target control structure.
  Causes:
  
  
  Data Structure Mismatch: The structure of the data being transferred does not match the expected structure of the target control. This could be due to missing fields, incorrect data types, or additional fields that are not defined in the target structure.
  
  
  Field Length Issues: The length of the data being transferred may exceed the defined length of the target fields.
  
  
  Data Type Incompatibility: The data types of the source fields may not be compatible with the target fields (e.g., trying to transfer a character string to a numeric field).
  
  
  Configuration Issues: There may be configuration issues in the data transfer settings or in the target structure definition.
  
  
  Missing or Incorrect Mapping: If the mapping between the source and target structures is not correctly defined, it can lead to this error.
  
  
  Solutions:
  
  
  Check Data Structure: Verify that the data structure of the source matches the target structure. Ensure that all required fields are present and that their data types and lengths are compatible.
  
  
  Adjust Field Lengths: If there are field length issues, adjust the lengths in the target structure or ensure that the data being transferred conforms to the expected lengths.
  
  
  Review Data Types: Ensure that the data types of the source fields match those of the target fields. If necessary, convert the data types before the transfer.
  
  
  Mapping Verification: Review the mapping configuration to ensure that all fields are correctly mapped from the source to the target structure.
  
  
  Debugging: If the issue persists, consider using debugging tools to trace the data transfer process and identify where the failure occurs.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the data transfer process you are using.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to data transfer, such as LSMW (Legacy System Migration Workbench) or other data migration tools.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  SAP Support: If the problem cannot be resolved internally, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the cause of the CFD_RUNTIME056 error and implement a suitable solution.