How To Fix /SMB/FKCHK056 - Interface must contain one export parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/FKCHK -

• Message number: 056

• Message text: Interface must contain one export parameter

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/FKCHK056 - Interface must contain one export parameter ?

  The SAP error message /SMB/FKCHK056 Interface must contain one export parameter typically occurs in the context of SAP Business One or related SAP modules when there is an issue with the interface definition of a function module or a BAPI (Business Application Programming Interface). This error indicates that the interface of the function module does not have the required export parameter, which is necessary for the function to execute properly.
  Cause:
  
  Missing Export Parameter: The function module or BAPI is expected to have at least one export parameter defined, but it does not.
  Incorrect Interface Definition: The interface of the function module may not be correctly defined, leading to the absence of the required export parameter.
  Configuration Issues: There may be configuration issues in the system that prevent the proper definition of the function module's interface.
  
  Solution:
  
  
  Check Function Module Definition:
  
  Go to transaction code SE37 (Function Module) or SE80 (Object Navigator).
  Locate the function module that is causing the error.
  Check the interface definition to ensure that there is at least one export parameter defined.
  
  
  
  Add Export Parameter:
  
  If the function module does not have an export parameter, you will need to add one.
  Define the export parameter with the appropriate data type and structure as required by the business logic.
  
  
  
  Activate the Function Module:
  
  After making changes to the function module, ensure that you activate it to apply the changes.
  
  
  
  Test the Function Module:
  
  After making the necessary changes, test the function module to ensure that it works as expected and that the error no longer occurs.
  
  
  
  Consult Documentation: If you are unsure about the required parameters, consult the SAP documentation or the development team for guidance on the expected interface.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Debugging: If the error persists, consider debugging the function module to trace the execution flow and identify where the interface is not being correctly utilized.
  
  By following these steps, you should be able to resolve the error message /SMB/FKCHK056 Interface must contain one export parameter.