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

UPF171 - Overview

• 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.

UPF171 - Details

• 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