How To Fix MEREP_00634 - Reference structure must be flat in parameter &1 for BAPI wrapper &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MEREP_00 - Basic Message

• Message number: 634

• Message text: Reference structure must be flat in parameter &1 for BAPI wrapper &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MEREP_00634 - Reference structure must be flat in parameter &1 for BAPI wrapper &2 ?

  The SAP error message MEREP_00634 indicates that there is an issue with the structure of the data being passed to a BAPI (Business Application Programming Interface) wrapper. Specifically, the error states that the reference structure must be flat, meaning that it should not contain nested structures or tables.
  Cause:
  
  Nested Structures: The parameter being passed to the BAPI contains nested structures or tables, which are not allowed in this context.
  Incorrect Data Mapping: The data being mapped to the BAPI does not conform to the expected flat structure.
  Configuration Issues: There may be issues with the configuration of the BAPI or the way it is being called.
  
  Solution:
  
  Check the Structure: Review the structure of the parameter &1 being passed to the BAPI wrapper &2. Ensure that it is a flat structure without any nested tables or structures.
  Modify Data Mapping: If you are using a custom program or interface, modify the data mapping to ensure that only flat structures are passed to the BAPI.
  Use Appropriate Data Types: Ensure that the data types used in the structure are compatible with the expected input of the BAPI.
  Consult Documentation: Refer to the SAP documentation for the specific BAPI you are using to understand the expected input parameters and their structure.
  Testing: After making the necessary changes, test the BAPI call again to ensure that the error is resolved.
  
  Related Information:
  
  BAPI Documentation: Check the SAP Help Portal or the specific BAPI documentation for details on the expected input parameters.
  SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Debugging: If you have access to the SAP system, consider using the debugger to trace the data being passed to the BAPI and identify where the structure is not flat.
  
  By ensuring that the data structure conforms to the requirements of the BAPI, you should be able to resolve the MEREP_00634 error.