How To Fix FES003 - Wrong frontend or error at frontend

FES003 - Overview

• Message type: E = Error

• Message class: FES - Messages for the Function Group SFES

• Message number: 003

• Message text: Wrong frontend or error at frontend

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

FES003 - Details

• The SAP error message FES003: Wrong frontend or error at frontend typically indicates an issue with the SAP GUI (Graphical User Interface) or the connection between the frontend client and the SAP backend system. This error can arise due to various reasons, including configuration issues, network problems, or compatibility issues between the SAP GUI and the backend system.
  Causes:
  
  Incompatible SAP GUI Version: The version of the SAP GUI installed on the client machine may not be compatible with the version of the SAP backend system.
  Network Issues: There may be network connectivity problems preventing the frontend from communicating with the backend.
  Configuration Errors: Incorrect settings in the SAP GUI configuration or in the SAP system settings can lead to this error.
  Corrupted Installation: The SAP GUI installation on the client machine may be corrupted or incomplete.
  Browser Issues: If you are using a web-based SAP interface (like SAP Fiori), browser compatibility issues can also trigger