How To Fix SMT_CONFIG106 - Additional input structure &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT_CONFIG - Configuration message class

• Message number: 106

• Message text: Additional input structure &1 already exists

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 SMT_CONFIG106 - Additional input structure &1 already exists ?

  The SAP error message SMT_CONFIG106 indicates that there is an attempt to create or configure an additional input structure that already exists in the system. This error typically occurs in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other related configuration scenarios.
  Cause:
  The error is caused by trying to define an input structure (like a data mapping or transformation structure) that has already been defined in the system. This can happen if:
  
  You are trying to create a duplicate structure with the same name or identifier.
  There is a misconfiguration in the migration or data import settings.
  The system is not properly recognizing existing configurations due to caching or other issues.
  
  Solution:
  To resolve the SMT_CONFIG106 error, you can follow these steps:
  
  
  Check Existing Structures:
  
  Go to the relevant configuration area in SAP where input structures are defined.
  Look for the structure with the name or identifier mentioned in the error message (&1).
  If it exists, you may need to modify or delete it if it is not needed.
  
  
  
  Modify the Existing Structure:
  
  If the existing structure is valid and you need to make changes, consider modifying it instead of creating a new one.
  
  
  
  Use a Different Name:
  
  If you need to create a new structure, ensure that you are using a unique name that does not conflict with existing structures.
  
  
  
  Clear Cache:
  
  Sometimes, the system may not reflect the latest changes due to caching. Try clearing the cache or refreshing the configuration.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific tool or module you are working with to ensure you are following the correct procedures.
  
  
  
  Check for Transport Issues:
  
  If you are working in a development environment and transporting changes to a production environment, ensure that the transport does not contain conflicting definitions.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may use transaction codes like LTMC (for Migration Cockpit) or SMT1 (for Data Migration) to access the relevant configuration areas.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to resolve the SMT_CONFIG106 error and continue with your configuration or data migration tasks.