How To Fix TG159 - Connection to TODIR interface cannot be opened; abnormal termination

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 159

• Message text: Connection to TODIR interface cannot be opened; abnormal termination

What causes this issue?

An internal error occurred.

System Response

Upgrade phase JOB_RDDIT021 aborted.

How to fix this error?

Contact the upgrade hotline.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TG159 - Connection to TODIR interface cannot be opened; abnormal termination ?

  The SAP error message TG159 indicates that there is an issue with the connection to the TODIR interface, which is typically related to file transfer or communication between SAP and external systems. This error can occur in various scenarios, such as during data export, file generation, or when trying to access a directory for file operations.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the external system or directory.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external system can lead to this error.
  File System Permissions: The user or service account running the SAP process may not have the necessary permissions to access the specified directory.
  Directory Path Issues: The specified directory path may be incorrect or may not exist.
  Resource Limitations: The system may be running out of resources (e.g., memory, disk space) that are required to establish the connection.
  Service Availability: The external service or interface that SAP is trying to connect to may be down or unavailable.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the SAP system and the external system. You can use tools like ping or traceroute to diagnose network issues.
  Verify Configuration: Review the configuration settings for the TODIR interface in the SAP system. Ensure that all parameters are set correctly.
  Check Permissions: Verify that the user or service account has the necessary permissions to access the directory. This may involve checking file system permissions on the server where the directory resides.
  Validate Directory Path: Ensure that the directory path specified in the configuration exists and is accessible. You can manually check the path on the server.
  Monitor System Resources: Check the system resources (CPU, memory, disk space) to ensure that the SAP system has enough resources to operate.
  Check External Service Status: If the connection is to an external service, verify that the service is up and running. You may need to contact the service provider if there are issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the TG159 error. SAP frequently updates its knowledge base with solutions for common errors.
  Logs: Review the application logs (transaction SM21) and system logs (transaction SLG1) for additional error messages or warnings that may provide more context about the issue.
  Documentation: Refer to the official SAP documentation for the specific module or interface you are working with to understand the expected configuration and usage.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.