How To Fix DBOSC460 - Error while creating connection; CON_ID=&1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: DBOSC -

• Message number: 460

• Message text: Error while creating connection; CON_ID=&1 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DBOSC460 - Error while creating connection; CON_ID=&1 already exists ?

  The SAP error message DBOSC460 indicates that there is an issue with creating a database connection because a connection with the specified ID (CON_ID=&1) already exists. This error typically arises in scenarios where multiple attempts are made to establish a connection using the same connection identifier.
  Cause:
  
  Duplicate Connection ID: The most common cause is that the connection ID you are trying to create is already in use or has not been properly closed.
  Configuration Issues: There may be misconfigurations in the database connection settings or in the SAP system configuration.
  Resource Limits: The database may have reached its limit for concurrent connections, leading to issues when trying to create new connections.
  Session Management: If sessions are not being managed properly, it can lead to lingering connections that prevent new ones from being established.
  
  Solution:
  
  Check Existing Connections: Verify if the connection ID is already in use. You can do this by checking the database connection status or using transaction codes like SM50 or SM66 to see active processes.
  Close Existing Connections: If you find that the connection is still active and not needed, you can terminate it. This can be done through the database management tools or SAP transaction codes.
  Use Unique Connection IDs: Ensure that you are using unique connection IDs for each new connection attempt to avoid conflicts.
  Review Configuration: Check the configuration settings in the SAP system and the database to ensure they are set up correctly. This includes reviewing the tnsnames.ora file (for Oracle databases) or other relevant configuration files.
  Increase Connection Limits: If the database is reaching its connection limit, consider increasing the maximum number of allowed connections in the database configuration.
  Restart Services: In some cases, restarting the SAP application server or the database server can help clear up lingering connections.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. SAP frequently releases updates that may address known issues.
  Database Documentation: Refer to the documentation for your specific database (e.g., Oracle, SQL Server, etc.) for connection management best practices.
  Monitoring Tools: Utilize monitoring tools to keep track of active connections and resource usage to prevent similar issues in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or database administrator for further investigation.