How To Fix UPF171 - Type &2 of parameter &1 is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: UPF - Planning Functions

• Message number: 171

• Message text: Type &2 of parameter &1 is invalid

What causes this issue?

Type &V1& of parameters &V2& is not permitted. The only types that are
permitted are types F, I, D, STRING or data elements.

System Response

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

How to fix this error?

Modify the function module interface accordingly.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPF171 - Type &2 of parameter &1 is invalid ?

  The SAP error message UPF171 indicates that there is an issue with a parameter in the User Profile Framework (UPF). Specifically, it states that the type of a parameter is invalid. This error typically arises when the system encounters a parameter that does not conform to the expected data type or format.
  Cause:
  
  Incorrect Parameter Type: The parameter being passed may not match the expected data type defined in the system. For example, if a numeric value is expected but a string is provided, this error can occur.
  Configuration Issues: There may be a misconfiguration in the user profile settings or in the related customizing settings.
  Data Entry Errors: Manual data entry errors can lead to invalid parameter types being saved in the system.
  Custom Development: If there are custom developments or enhancements that interact with user profiles, they may not be handling parameters correctly.
  
  Solution:
  
  Check Parameter Definitions: Review the parameter definitions in the User Profile Framework to ensure that the types are correctly defined and that the values being passed match these definitions.
  Validate Input Data: Ensure that the data being inputted into the system adheres to the expected formats and types. This may involve checking user inputs or data being imported into the system.
  Review Custom Code: If there are any custom developments, review the code to ensure that it is correctly handling the parameters and their types.
  Consult Documentation: Refer to SAP documentation or notes related to the User Profile Framework for any specific guidelines or known issues.
  Testing: If changes are made, conduct thorough testing to ensure that the issue is resolved and that no new issues are introduced.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to user profiles, such as SU01 (User Maintenance) and PFCG (Role Maintenance), to help diagnose the issue.
  User Profile Framework: Understanding the User Profile Framework and its configuration can provide insights into how parameters are defined and used.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.