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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message DU402 - Enter the full registry entry (key and section) ?

  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 configured. If you are unsure, you may want to compare with a working installation or consult SAP documentation.
  
  
  
  Reinstall SAP GUI:
  
  If the registry entries are missing or corrupted, consider reinstalling the SAP GUI. This should restore the necessary registry entries.
  Make sure to uninstall the existing version completely before reinstalling.
  
  
  
  Check SAP GUI Configuration:
  
  Open the SAP GUI and check the configuration settings. Ensure that the connection parameters (like the application server, system number, etc.) are correctly entered.
  You can also try creating a new connection entry to see if that resolves the issue.
  
  
  
  User Permissions:
  
  Ensure that the user has the necessary permissions to access the registry. Running the SAP GUI as an administrator may help in some cases.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or updates related to this error. There may be specific patches or updates that address this issue.
  
  
  
  Related Information:
  
  SAP GUI Versions: Ensure that you are using a compatible version of the SAP GUI for your SAP system.
  Operating System Compatibility: Check if there are any known issues with the version of Windows you are using and the SAP GUI version.
  SAP Community: You can also search for discussions or solutions in the SAP Community forums, where other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact your IT support team or SAP support for further assistance.