How To Fix AH390 - In variant &1 an input operand is missing in step &2

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 390

• Message text: In variant &1 an input operand is missing in step &2

What causes this issue?

An input operand is missing in step &V2& for variant &V1&.

System Response

The rate cannot be saved.

How to fix this error?

Maintain the missing values or delete the rate step.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH390 - In variant &1 an input operand is missing in step &2 ?

  The SAP error message AH390 indicates that there is a missing input operand in a specific step of a variant. This typically occurs in the context of variant configuration or when executing a report or program that uses variants to define parameters.
  Cause:
  The error is caused by one or more of the following reasons:
  
  Missing Input Operand: The variant defined for the report or program does not include all the required input parameters for the specified step.
  Incorrect Variant Configuration: The variant may have been incorrectly configured, leading to missing or incomplete data.
  Changes in Program Logic: If the underlying program or report has been modified (e.g., new parameters added), the existing variant may no longer be valid.
  User Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain parameters, leading to the perception that they are missing.
  
  Solution:
  To resolve the AH390 error, you can take the following steps:
  
  
  Check the Variant Configuration:
  
  Go to the transaction where the variant is used (e.g., SE38 for reports).
  Open the variant in question and verify that all required input fields are filled in correctly.
  
  
  
  Update the Variant:
  
  If you find that an input operand is indeed missing, update the variant to include the necessary parameters.
  Save the changes and try executing the report or program again.
  
  
  
  Review Program Changes:
  
  If the program has been modified recently, check the documentation or consult with the development team to understand any changes that may have affected the variant.
  
  
  
  Test with Default Values:
  
  If possible, try executing the program without the variant or with a different variant that is known to work. This can help isolate whether the issue is with the specific variant or the program itself.
  
  
  
  Check User Authorizations:
  
  Ensure that the user executing the report has the necessary authorizations to access all parameters defined in the variant.
  
  
  
  Consult SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: SE38 (ABAP Editor), SE93 (Maintain Transaction Codes), and variants can be managed through the report selection screen.
  Documentation: Review the documentation for the specific report or program to understand the required parameters and their expected values.
  SAP Community: Engage with the SAP Community or forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify and resolve the issue causing the AH390 error in SAP.