How To Fix DU401 - Enter only a program name or a registry entry

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 401

• Message text: Enter only a program name or a registry entry

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?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 DU401 - Enter only a program name or a registry entry ?

  The SAP error message DU401 ("Enter only a program name or a registry entry") typically occurs when there is an issue with the input provided in a transaction or program that expects a specific format or type of data. This error is often related to the use of the SAP GUI or when executing certain programs or transactions that require a program name or registry entry.
  Cause:
  
  Incorrect Input: The most common cause of this error is that the user has entered an invalid or incorrect input in the field where a program name or registry entry is expected.
  Missing Program Name: If the field is left blank or contains multiple entries instead of a single program name or registry entry, this error can occur.
  System Configuration: There may be issues with the system configuration or settings that are causing the program to misinterpret the input.
  
  Solution:
  
  Check Input: Ensure that you are entering only a valid program name or a single registry entry. Remove any extra characters, spaces, or invalid entries.
  Use Correct Format: Make sure that the program name is in the correct format. For example, it should not include any special characters or spaces unless specifically allowed.
  Consult Documentation: Refer to the SAP documentation or help files for the specific transaction or program you are using to understand the expected input format.
  System Settings: If the issue persists, check with your SAP Basis team or system administrator to ensure that the system settings are correctly configured and that there are no underlying issues with the SAP environment.
  Transaction Codes: If you are using a specific transaction code, ensure that it is valid and that you have the necessary authorizations to execute it.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message DU401. SAP frequently updates its knowledge base with solutions to common problems.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They can provide more detailed troubleshooting based on your specific system configuration and usage.
  
  By following these steps, you should be able to identify the cause of the DU401 error and implement a solution to resolve it.