How To Fix LAW2_MESSAGES505 - System &1: System number &2 already in use by system &3

SAP Error Message - Details

• Message type: E = Error

• Message class: LAW2_MESSAGES - LAW 2.0 Message Class

• Message number: 505

• Message text: System &1: System number &2 already in use by system &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LAW2_MESSAGES505 - System &1: System number &2 already in use by system &3 ?

  The SAP error message LAW2_MESSAGES505 indicates that there is a conflict with the system number being used. Specifically, it means that the system number you are trying to use (denoted as &2) is already in use by another system (denoted as &3). This typically occurs in scenarios involving system landscape configurations, such as when setting up a new SAP system or during system migrations.
  Cause:
  
  Duplicate System Number: The system number you are trying to assign is already assigned to another SAP system in the landscape.
  Incorrect Configuration: There may be a misconfiguration in the SAP system landscape, where the same system number is being referenced in multiple places.
  Transport Directory Issues: If you are working with transport directories, there may be remnants of old configurations that are causing conflicts.
  
  Solution:
  
  
  Check System Configuration:
  
  Verify the system number you are trying to use and ensure it is not already assigned to another system. You can check this in the SAP system landscape directory or through transaction codes like SICF or SMLT.
  
  
  
  Change System Number:
  
  If the system number is indeed in use, you will need to choose a different system number for your new system or configuration.
  
  
  
  Review Transport Directory:
  
  If applicable, check the transport directory for any inconsistencies or remnants of previous configurations that might be causing the conflict.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that might address this specific error or provide additional guidance on resolving system number conflicts.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to system landscape management and configuration to ensure that you are following the correct procedures.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is impacting production systems.
  
  
  
  Related Information:
  
  System Landscape Directory (SLD): This is a central repository for managing system landscape information. Ensure that your SLD is up to date and accurately reflects your current system landscape.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SMLT (for managing system landscape) and SICF (for service configuration) to help diagnose and resolve issues.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.