How To Fix D3704 - Address space already exists in list

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 704

• Message text: Address space already exists in list

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 D3704 - Address space already exists in list ?

  The SAP error message D3704, which states "Address space already exists in list," typically occurs in the context of address space management within the SAP system. This error can arise when there is an attempt to create or register an address space that already exists in the system's address space list.
  Cause:
  
  Duplicate Address Space: The most common cause of this error is that the address space you are trying to create or register is already present in the system. This can happen if there is a misconfiguration or if the address space was not properly released after its previous use.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to conflicts in address space management.
  System Bugs: In some cases, this error may be related to bugs in the SAP kernel or specific modules.
  
  Solution:
  
  Check Existing Address Spaces: Verify the list of currently registered address spaces in the system. You can do this by using transaction codes like SM51 (to check the application servers) or SM04 (to check user sessions) to see if the address space is already in use.
  Release Unused Address Spaces: If you find that an address space is no longer in use but still registered, you may need to release it. This can often be done through transaction codes or by restarting the relevant application server.
  Review Configuration: Check the configuration settings related to address space management in your SAP system. Ensure that there are no conflicting settings that could lead to this error.
  SAP Notes and Patches: Look for any relevant SAP Notes that address this specific error. Sometimes, applying a patch or update can resolve underlying issues that lead to this error.
  Consult SAP Support: If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance. They can provide insights based on the specific version of your SAP system and any known issues.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on address space management and error handling.
  Community Forums: Check SAP community forums or other online resources where similar issues may have been discussed. Other users may have encountered the same error and found solutions.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the D3704 error in your SAP system.