How To Fix S1099 - Select one function

S1099 - Overview

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 099

• Message text: Select one function

What causes this issue?

You have not selected a function by clicking or marking.

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?

Choose a function from the displayed list by clicking or marking.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S1099 - Select one function ?

  The SAP error message S1099 "Select one function" typically occurs when a user is trying to execute a function or transaction that requires a selection of a specific option or function, but none has been selected. This error is common in various SAP modules where multiple options are available, and the system requires the user to specify which one they want to proceed with.
  
  Cause:
  
  No Selection Made: The user has not selected any of the available options or functions in the dialog box or screen.
  Multiple Options Available: The system presents multiple functions, and the user must choose one, but they have not done so.
  User Interface Issue: Sometimes, the user interface may not display the options correctly, leading to confusion.
  
  
  Solution:
  
  Select an Option: Go back to the screen where the error occurred and ensure that you select one of the available functions or options before proceeding.
  Check for Required Fields: Ensure that all required