How To Fix SV394 - The screen number & is reserved

SV394 - Overview

• Message type: E = Error

• Message class: SV - View Maintenance: Customize Messages

• Message number: 394

• Message text: The screen number & is reserved

What causes this issue?

The screen number &V1& lies in the range reserved (1000 - 1010) for
the ABAP/4 selection screens.

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?

Error message extract from SAP system. Copyright SAP SE.

SV394 - Details

• The SAP error message SV394, which states "The screen number & is reserved," typically occurs when there is an attempt to use a screen number that is already reserved for system use or is not available for user-defined screens. This can happen in various scenarios, such as when developing custom transactions or screens in SAP.
  
  Cause:
  
  Reserved Screen Numbers: SAP has a range of screen numbers that are reserved for standard SAP applications. If a developer tries to create a screen using one of these reserved numbers, the system will throw this error.
  Incorrect Screen Number Assignment: The screen number being referenced may have been incorrectly assigned or may not exist in the system.
  Namespace Conflicts: If the screen number is part of a namespace that is not properly defined or is conflicting with another object, it can lead to this error.
  
  
  Solution:
  
  Use Valid Screen Numbers: Ensure that the screen number you are trying to