How To Fix DV479 - No user exit exists for main function &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DV - EHS: Messages for Report Shipping

• Message number: 479

• Message text: No user exit exists for main function &1

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 DV479 - No user exit exists for main function &1 ?

  The SAP error message DV479, which states "No user exit exists for main function &1," typically occurs when a user exit (a point in the program where you can add custom code) is not available for the specified main function. This can happen in various contexts, such as during data processing or when executing certain transactions.
  Cause:
  
  
  Missing User Exit: The primary cause of this error is that the specific user exit for the main function you are trying to use does not exist in the system. This could be due to:
  
  The function not being implemented in the current version of the software.
  The user exit being disabled or not activated.
  The function being incorrectly configured or not available in the current context.
  
  
  
  Incorrect Configuration: Sometimes, the configuration settings for the user exits may not be set up correctly, leading to the system not recognizing the exit.
  
  
  Version Mismatch: If you are using a custom or third-party solution, there may be a version mismatch that prevents the user exit from being recognized.
  
  
  Solution:
  
  
  Check for User Exit Availability:
  
  Use transaction code SMOD to check if the user exit exists for the main function you are trying to use. You can search for the specific function module or program to see if there are any associated user exits.
  
  
  
  Implement or Activate User Exit:
  
  If the user exit exists but is not activated, you may need to activate it using transaction CMOD.
  If the user exit does not exist, you may need to implement a custom user exit or find an alternative approach to achieve your requirements.
  
  
  
  Review Documentation:
  
  Check the SAP documentation or notes related to the specific function you are working with. There may be specific instructions or prerequisites for using user exits.
  
  
  
  Consult with SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide insights or patches that could resolve the issue.
  
  
  
  Check for Custom Code:
  
  If you have custom code that interacts with the main function, review it to ensure it is not causing the issue. Sometimes, custom modifications can lead to unexpected behavior.
  
  
  
  Related Information:
  
  User Exits: User exits are predefined points in SAP programs where you can add your own code without modifying the original program. They are often used to enhance standard functionality.
  Transaction Codes:
  
  SMOD: To manage user exits.
  CMOD: To create and manage projects that use user exits.
  
  
  SAP Notes: Always check for relevant SAP Notes that may address specific issues related to user exits and the functions you are working with.
  
  By following these steps, you should be able to diagnose and resolve the DV479 error in your SAP system.