How To Fix /UI2/INTEROP020 - Parameter &1 of function import &2 is obligatory but not supplied

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/INTEROP -

• Message number: 020

• Message text: Parameter &1 of function import &2 is obligatory but not supplied

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/INTEROP020 - Parameter &1 of function import &2 is obligatory but not supplied ?

  The SAP error message /UI2/INTEROP020 indicates that a required parameter for a function import in an OData service is missing. This typically occurs when a client application (like an SAP Fiori app) tries to call an OData service but does not provide all the necessary parameters that the service expects.
  
  Cause:
  
  Missing Parameter: The error specifically states that a parameter (denoted as &1) for a function import (denoted as &2) is obligatory but has not been supplied in the request.
  Incorrect Configuration: The OData service might be incorrectly configured, or the client application might not be sending the correct parameters.
  Client-Side Issues: The client application may have a bug or misconfiguration that prevents it from sending the required parameters.
  
  
  Solution:
  
  Check the OData Service Documentation: Review the documentation for the OData service to identify the required parameters for the function import. Ensure that you are providing all mandatory parameters in your request.
  Debug the Client Application: If