How To Fix DU402 - Enter the full registry entry (key and section)

DU402 - Overview

• Message type: E = Error

• Message class: DU - Data transfer to SAP-EIS

• Message number: 402

• Message text: Enter the full registry entry (key and section)

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.

DU402 - Details

• The SAP error message DU402, which states "Enter the full registry entry (key and section)," typically occurs when there is an issue with the configuration of the SAP GUI or the connection settings to the SAP system. This error is often related to the Windows registry settings that SAP uses to store configuration information.
  
  Cause:
  
  Incomplete Registry Entry: The error indicates that the registry entry for the SAP GUI is incomplete or missing. This can happen if the installation was not completed properly or if the registry entries were manually altered or deleted.
  Incorrect Configuration: The SAP GUI configuration might not be set up correctly, leading to issues in connecting to the SAP system.
  User Permissions: Insufficient permissions to access or modify the registry entries can also lead to this error.
  
  
  Solution:
  
  
  Check Registry Entries:
  
  Open the Windows Registry Editor (regedit).
  Navigate to the following path: HKEY_CURRENT_USER\Software\SAP\SAP GUI\
  Ensure that the necessary keys and sections are present and correctly