How To Fix W8401 - Invalid command '&1' received from HTML control

W8401 - Overview

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 401

• Message text: Invalid command '&1' received from HTML control

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W8401 - Invalid command '&1' received from HTML control ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W8401 Invalid command '&1' received from HTML control
  
  
  Cause:
  This error occurs when the SAP GUI for HTML (Web GUI) receives a command from the HTML control that it does not recognize or that is invalid in the current context. The placeholder &1 in the message is replaced by the actual command string that was sent but not understood.
  Common causes include:
  
  Custom or third-party controls/scripts sending commands that the SAP Web GUI does not support.
  Browser or network issues causing corrupted or incomplete command data.
  Mismatch between SAP GUI versions and the Web GUI components.
  Incorrect or unsupported user actions in the Web GUI interface.
  SAP GUI for HTML bugs or inconsistencies in handling certain commands.
  
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check the command string (&1):
  
  Identify the exact command causing the issue from the error message.
  Analyze if this command is expected or if it comes