How To Fix AV440 - Error with setting up connection to & subsystem &

SAP Error Message - Details

• Message type: E = Error

• Message class: AV - Decentral Order Control DASS

• Message number: 440

• Message text: Error with setting up connection to & subsystem &

What causes this issue?

It was not possible to set up a connection to the
specified subsystem.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Please try again, and inform the person responsible for
the System if your attempt is still unsuccessful.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AV440 - Error with setting up connection to & subsystem & ?

  The SAP error message AV440 typically indicates an issue with establishing a connection to a specified subsystem. This error can arise in various contexts, such as when trying to connect to a database, an external system, or a specific service within the SAP environment.
  Causes of AV440 Error
  
  
  Configuration Issues: The connection parameters for the subsystem may not be correctly configured in the SAP system. This includes incorrect hostnames, ports, or service names.
  
  
  Network Problems: There may be network connectivity issues preventing the SAP system from reaching the specified subsystem. This could be due to firewall settings, network outages, or incorrect routing.
  
  
  Authorization Issues: The user or service account attempting to establish the connection may not have the necessary permissions to access the subsystem.
  
  
  Subsystem Availability: The subsystem itself may be down or not running, which would prevent any connections from being established.
  
  
  Version Compatibility: There may be compatibility issues between the SAP system and the subsystem, especially if one has been recently upgraded or patched.
  
  
  Solutions to AV440 Error
  
  
  Check Configuration:
  
  Verify the connection settings in the SAP system. Ensure that the hostname, port, and any other parameters are correctly set.
  Check the relevant configuration files or settings in transaction codes like SM59 (for RFC connections) or DBACOCKPIT (for database connections).
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or telnet to check if the SAP system can reach the subsystem's hostname and port.
  Ensure that there are no firewall rules blocking the connection.
  
  
  
  Review Authorizations:
  
  Check the user roles and authorizations for the account being used to connect to the subsystem. Ensure it has the necessary permissions.
  
  
  
  Check Subsystem Status:
  
  Verify that the subsystem is up and running. If it is a database, check the database server status. If it is an external service, ensure that it is operational.
  
  
  
  Consult Logs:
  
  Review the SAP system logs (transaction SM21) and the logs of the subsystem for any additional error messages or clues that could help diagnose the issue.
  
  
  
  Update or Patch:
  
  If there are known compatibility issues, consider applying the latest patches or updates to both the SAP system and the subsystem.
  
  
  
  Related Information
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the specific subsystem you are trying to connect to, as it may have specific requirements or configurations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.