How To Fix IRW_LT042 - Legacy system table &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: IRW_LT - ILM LT

• Message number: 042

• Message text: Legacy system table &1 not found

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IRW_LT042 - Legacy system table &1 not found ?

  The SAP error message IRW_LT042 indicates that a legacy system table specified in the system is not found. This error typically occurs during data migration or integration processes when the system is trying to access a table that is expected to exist but does not.
  Cause:
  
  Table Not Created: The specified legacy system table has not been created in the SAP system.
  Incorrect Table Name: There may be a typo or incorrect naming convention used when referencing the table.
  Data Migration Issues: During data migration, the table may not have been included or properly migrated from the legacy system.
  Configuration Issues: The configuration settings for the legacy system integration may not be set up correctly, leading to the system looking for a non-existent table.
  
  Solution:
  
  Verify Table Existence: Check if the table exists in the SAP system. You can do this by using transaction codes like SE11 (Data Dictionary) to look for the table.
  Check Naming Conventions: Ensure that the table name is spelled correctly and follows the naming conventions used in your SAP system.
  Create the Table: If the table does not exist and is required for your processes, you may need to create it manually or ensure it is included in your data migration process.
  Review Migration Process: If this error occurs during a data migration, review the migration scripts or tools being used to ensure that all necessary tables are being created and populated.
  Consult Documentation: Refer to the documentation for the legacy system integration to ensure that all required configurations and setups are correctly implemented.
  Check Authorization: Ensure that the user executing the transaction has the necessary authorizations to access the table.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), and ST22 (Dump Analysis) can be useful for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Data Migration Tools: If you are using tools like SAP Data Services or LSMW (Legacy System Migration Workbench), ensure that the mappings and configurations are correct.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify the cause of the IRW_LT042 error and implement a solution to resolve it.