How To Fix DH188 - Width & of parameter list is too big for personal help

DH188 - Overview

• Message type: E = Error

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

• Message number: 188

• Message text: Width & of parameter list is too big for personal help

What causes this issue?

For technical reasons, the <LS>personal help</> function cannot be
offered for elementary search helps in which the total width of all the
<DS:TX.DDDOK_SHLP_PARAMETER>parameters</> is greater than &V2&. The
total width of all the parameters of the current search help is &V1&.
As a result, no personal help can be offered for it.

System Response

The action is continued. The personal help function does not offer
input helps that use the current search help.

How to fix this error?

Check if you really need all the parameters for the search help. If
necessary remove some parameters.

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 DH188 - Width & of parameter list is too big for personal help ?

  The SAP error message DH188, which states "Width & of parameter list is too big," typically occurs when the parameter list being passed to a function module or method exceeds the maximum allowed size. This can happen in various scenarios, such as when using function modules, RFC calls, or when dealing with large data structures.
  
  Cause:
  
  Exceeding Parameter Limits: The parameter list for a function module or method has a maximum size limit. If the combined width of all parameters exceeds this limit, the error will occur.
  Large Data Structures: If you are passing large internal tables or structures as parameters, they may exceed the allowed size.
  Incorrect Data Types: Sometimes, using incorrect or overly large data types can lead to this issue.
  
  
  Solution:
  
  
  Reduce Parameter Size: Review the parameters being passed to the function module or method. Try to reduce the size of the data being sent. This can be done by:
  
  Sending only the necessary