How To Fix TG660 - *** RDDPUCLS: Driver for command file merge in substitution export system

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 660

• Message text: *** RDDPUCLS: Driver for command file merge in substitution export system

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 TG660 - *** RDDPUCLS: Driver for command file merge in substitution export system ?

  The SAP error message TG660, specifically "RDDPUCLS: Driver for command file merge in substitution export system," typically relates to issues encountered during the execution of background jobs, particularly those involving the merging of command files in the context of data export or transport processes.
  Cause:
  
  Configuration Issues: The error may arise due to incorrect configuration settings in the transport management system (TMS) or in the background job settings.
  File System Issues: Problems with the file system, such as insufficient permissions, lack of space, or file corruption, can lead to this error.
  Network Issues: If the export system is remote, network connectivity issues can prevent successful communication and data transfer.
  Job Scheduling Conflicts: Conflicts with other scheduled jobs or processes that may be accessing the same resources can also trigger this error.
  
  Solution:
  
  Check Configuration: Review the transport management system settings and ensure that all configurations are correct. This includes checking the transport routes and the settings for the export system.
  File System Check: Verify that the file system has sufficient space and that the necessary permissions are set for the user executing the job. Check for any corrupted files that may need to be repaired or deleted.
  Network Connectivity: Ensure that there are no network issues affecting the connection between the systems involved. Test the connectivity and resolve any network-related problems.
  Job Monitoring: Use transaction codes like SM37 to monitor the background jobs. Check for any other jobs that might be conflicting with the one that is failing and resolve any conflicts.
  Review Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide additional context on what might be causing the issue.
  Restart the Job: After addressing the above points, try restarting the job to see if the issue persists.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the TG660 error for any specific patches or updates that may address known issues.
  Documentation: Review SAP documentation on transport management and background job processing for best practices and troubleshooting steps.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages for better diagnosis.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the TG660 error in your SAP system.