How To Fix 5C524 - Source and target keys must be identically structured.

SAP Error Message - Details

• Message type: E = Error

• Message class: 5C - HR: Messages for Switzerland

• Message number: 524

• Message text: Source and target keys must be identically structured.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5C524 - Source and target keys must be identically structured. ?

  The SAP error message 5C524 ("Source and target keys must be identically structured") typically occurs in the context of data transfer or data mapping processes, such as during the execution of data migration, data replication, or when working with data models in SAP systems. This error indicates that the source and target structures (e.g., fields, data types, lengths) do not match, which prevents the system from successfully mapping data from the source to the target.
  Cause:
  
  
  Mismatched Data Structures: The most common cause is that the source and target data structures (like tables or data objects) have different field definitions. This can include differences in:
  
  Field names
  Data types (e.g., CHAR vs. NUMC)
  Field lengths
  Number of fields
  
  
  
  Configuration Issues: If you are using a data transfer tool or a specific configuration in SAP (like LSMW, BAPIs, or IDocs), the mapping configuration may not be set up correctly.
  
  
  Changes in Data Model: If there have been recent changes to the data model (e.g., new fields added, fields removed, or data types changed), this can lead to mismatches.
  
  
  Solution:
  
  
  Check Data Structures: Review the source and target data structures to ensure they are identical in terms of field names, data types, and lengths. You can do this by:
  
  Using transaction codes like SE11 (Data Dictionary) to compare the structures.
  Checking the data mapping configuration if you are using a tool like LSMW.
  
  
  
  Adjust Mapping Configuration: If you are using a data migration tool, ensure that the mapping configuration is correctly set up to match the source and target structures. This may involve:
  
  Adding or removing fields in the mapping.
  Changing data types or lengths to ensure compatibility.
  
  
  
  Data Transformation: If the structures cannot be made identical due to business requirements, consider implementing data transformation logic to convert the data from the source format to the target format.
  
  
  Testing: After making the necessary adjustments, perform a test run to ensure that the data transfer or mapping works without errors.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and LSMW (Legacy System Migration Workbench) for data migration tasks.
  Documentation: Refer to SAP documentation or help resources for specific tools you are using, as they may provide additional insights into common issues and their resolutions.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.