How To Fix DH186 - Parameter & has long string type, but has no pure display parameter

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 186

• Message text: Parameter & has long string type, but has no pure display parameter

What causes this issue?

<DS:TX.DDDOK_SHLP_PARAMETER>Search help parameters</> that have a long
string type (STRING or RAWSTRING), must be display parameters only.
They must:
Not belong to the search help interface (not be IMPORT or EXPORT
parameters)
Not appear in a dialog box for restricting the number of hits (for
elementary search help)
Not have any default values
The parameter &V1& violates these conditions. &SYSTEM_RESPONSE&
INCLUDE DDDOC_CANCEL OBJECT DOKU ID TX

How to fix this error?

Correct the definition of the search help.
INCLUDE DDDOC_SHLP_HANDLE OBJECT DOKU ID TX

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 DH186 - Parameter & has long string type, but has no pure display parameter ?

  The SAP error message DH186 indicates that a parameter in a function module or method has a long string type but does not have a corresponding display parameter. This can occur in ABAP programming when you are trying to pass a long string (like a text or a large data structure) to a function or method that does not have a defined way to display that string.
  Cause:
  
  Parameter Definition: The parameter in question is defined as a long string type (e.g., STRING or RAWSTRING), but there is no associated display parameter that can handle the output or representation of that string.
  Function Module/Method Design: The function module or method may not be designed to handle long strings properly, leading to this error when trying to execute it.
  
  Solution:
  
  Check Parameter Definitions: Review the parameter definitions in the function module or method. Ensure that if a long string type is used, there is a corresponding display parameter defined.
  Modify the Function Module/Method: If you have access to modify the function module or method, consider adding a display parameter that can handle the long string type.
  Use Alternative Data Types: If appropriate, consider using a different data type that is more suitable for the intended use case, such as CHAR or VARCHAR, depending on the length of the data you expect.
  Error Handling: Implement error handling in your code to catch this specific error and provide a user-friendly message or alternative processing logic.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for guidelines on parameter types and best practices for defining function modules and methods.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  Community Forums: Engage with the SAP community forums or Stack Overflow for insights from other developers who may have encountered and resolved similar issues.
  
  By addressing the parameter definitions and ensuring that the function module or method is designed to handle long strings appropriately, you can resolve the DH186 error.