How To Fix DMC_RT_GEN123 - List of tables for mass data transfer &1 was created

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_GEN - DMC: Nachrichten der Generierungfunktionen

• Message number: 123

• Message text: List of tables for mass data transfer &1 was created

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 DMC_RT_GEN123 - List of tables for mass data transfer &1 was created ?

  The SAP error message DMC_RT_GEN123 typically indicates that there is an issue related to the generation of a list of tables for mass data transfer in the Data Migration Cockpit (DMC). This message is often associated with data migration activities, particularly when using tools like the SAP Data Services or the SAP S/4HANA Migration Cockpit.
  Cause:
  
  Configuration Issues: The error may arise due to incorrect configuration settings in the Data Migration Cockpit or the source/target systems.
  Missing Authorizations: The user executing the data transfer may lack the necessary authorizations to access certain tables or perform specific actions.
  Data Model Changes: If there have been changes to the data model (e.g., new fields, tables, or relationships), the system may not be able to generate the list correctly.
  Technical Issues: There could be underlying technical issues, such as database connectivity problems or system performance issues.
  
  Solution:
  
  Check Configuration: Review the configuration settings in the Data Migration Cockpit to ensure they are set up correctly. Verify that the source and target systems are properly defined.
  User Authorizations: Ensure that the user has the necessary authorizations to perform data migration tasks. This may involve checking roles and permissions in the SAP system.
  Review Data Model: If there have been recent changes to the data model, ensure that the migration templates and mappings are updated accordingly.
  System Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue.
  Recreate the List: If the list of tables was generated previously, try to recreate it. This may involve re-running the data transfer process or refreshing the migration project.
  Consult Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for any specific troubleshooting steps related to this error message.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the DMC and this specific error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  By following these steps, you should be able to identify the cause of the DMC_RT_GEN123 error and implement a suitable solution.