How To Fix DH166 - Function module & has no &-parameter &

SAP Error Message - Details

• Message type: E = Error

• Message class: DH - DD: Messages for search helps

• Message number: 166

• Message text: Function module & has no &-parameter &

What causes this issue?

The search help has function module &V1& as
<DS:TX.DDDOK_SHLP_EXIT>search help exit</>. This results in certain
conditions for the interface of the function module. In particular, the
module must have a &V2& parameter &V3& that has exactly the same type
as in function module <LS>F4IF_SHLP_EXIT_EXAMPLE</>. The module does
not have the specified parameter.

System Response

INCLUDE DDDOC_CANCEL

How to fix this error?

Adjust the interface of the search help exit to the specified template.
Also note that type group <LS>SHLP</> must be defined in the global
data of the module.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DH166 - Function module & has no &-parameter & ?

  The SAP error message DH166 indicates that a function module is being called without the required parameters. This typically occurs when the function module is expected to receive certain input parameters, but they are either missing or incorrectly specified in the call.
  Cause:
  
  Missing Parameters: The function module is called without providing all the necessary parameters.
  Incorrect Parameter Names: The parameters provided do not match the expected names or types defined in the function module.
  Data Type Mismatch: The parameters provided may not match the expected data types, leading to the function module not recognizing them.
  Changes in Function Module: If the function module has been modified (e.g., added or removed parameters), the calling program may not be updated accordingly.
  
  Solution:
  
  Check Function Module Definition: Go to transaction SE37 (Function Module) and check the definition of the function module in question. Verify the required parameters and their data types.
  Update Calling Program: Ensure that the program or report calling the function module is providing all the required parameters. Update the code to include any missing parameters.
  Parameter Names: Make sure that the parameter names used in the call match exactly with those defined in the function module.
  Data Types: Ensure that the data types of the parameters being passed match the expected types in the function module.
  Debugging: If necessary, use the debugger to step through the code and identify where the parameters are being set or passed incorrectly.
  
  Related Information:
  
  Transaction Codes: 
  
  SE37: Function Module Maintenance
  SE80: Object Navigator (to find where the function module is used)
  
  
  Documentation: Check the documentation for the function module to understand its purpose and the parameters it requires.
  SAP Notes: Search for any relevant SAP Notes that might address known issues with the function module or provide additional guidance.
  
  By following these steps, you should be able to resolve the DH166 error and ensure that the function module is called correctly with all required parameters.