How To Fix S1424 - Parameter type & unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 424

• Message text: Parameter type & unknown

What causes this issue?

During the parameter dialog the system detected a parameter identifier
which is not known. This may occur if the action description table
SDBAC was changed inaccurately.

System Response

The specific parameter type will not be handled. The rest of the dialog
will be normally processed.

How to fix this error?

If you changed the table SDBAC by yourself you should carefully check
these changes - otherwise you should contact SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S1424 - Parameter type & unknown ?

  The SAP error message S1424, which states "Parameter type & unknown," typically occurs when there is an issue with the parameters being passed to a function module, report, or transaction in SAP. This error indicates that the system does not recognize the type of parameter being used, which can lead to various issues in processing.
  Causes:
  
  Incorrect Parameter Type: The parameter type being passed does not match the expected type defined in the function module or report.
  Missing or Incorrectly Defined Data Elements: If a data element or structure is not defined correctly in the ABAP Dictionary, it can lead to this error.
  Changes in Function Module: If a function module has been modified or updated, and the calling program has not been adjusted accordingly, it may lead to this error.
  Transport Issues: If the transport of a function module or program was not successful, it may lead to inconsistencies in parameter definitions.
  
  Solutions:
  
  Check Parameter Definitions: Review the function module or report to ensure that the parameters being passed are defined correctly and match the expected types.
  Debugging: Use the ABAP debugger to trace the execution and identify where the incorrect parameter type is being passed.
  Review Changes: If there have been recent changes to the function module or report, review those changes to ensure that they are compatible with the calling program.
  Data Element Verification: Check the data elements and structures in the ABAP Dictionary to ensure they are defined correctly and are active.
  Transport Check: If the issue arose after a transport, check the transport logs for any errors and ensure that all necessary objects were transported correctly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions for common errors.
  ABAP Documentation: Review the ABAP documentation for guidelines on parameter types and function module definitions.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed and resolved.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP technical consultant or reach out to SAP support for further assistance.