How To Fix /SAPDMC/LSMW105 - Source structure '&' is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPDMC/LSMW -

• Message number: 105

• Message text: Source structure '&' is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPDMC/LSMW105 - Source structure '&' is not defined ?

  The SAP error message /SAPDMC/LSMW105 Source structure '&' is not defined typically occurs in the context of using the Legacy System Migration Workbench (LSMW) in SAP. This error indicates that the source structure you are trying to use in your LSMW project has not been defined or is not recognized by the system.
  Cause:
  
  Missing Definition: The source structure you are trying to reference has not been defined in the LSMW project.
  Typographical Error: There may be a typo in the name of the source structure you are trying to use.
  Incorrect Project Configuration: The project or subproject may not be configured correctly to include the source structure.
  Data Mapping Issues: The mapping between the source structure and the target structure may not be set up properly.
  
  Solution:
  
  
  Define the Source Structure:
  
  Go to the LSMW transaction (LSMW).
  Navigate to the project, subproject, and object where the error occurred.
  Check if the source structure is defined. If not, you need to create it.
  Use the "Maintain Source Structures" option to define the required source structure.
  
  
  
  Check for Typos:
  
  Verify the name of the source structure in your LSMW project. Ensure that it matches exactly with what you have defined.
  
  
  
  Review Project Configuration:
  
  Ensure that the project and subproject settings are correct and that they include the necessary source structures.
  Check the "Maintain Source Fields" section to ensure that the fields are correctly mapped to the source structure.
  
  
  
  Mapping Verification:
  
  Go to the "Maintain Field Mapping and Conversion Rules" section and ensure that the mapping between the source and target structures is correctly set up.
  
  
  
  Recreate the Structure:
  
  If the structure is still not recognized, consider deleting and recreating it to ensure that it is properly defined.
  
  
  
  Related Information:
  
  Documentation: Refer to the SAP Help Portal for detailed documentation on LSMW and how to define source structures.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LSMW, SE11 (Data Dictionary), and SE37 (Function Modules) for further troubleshooting.
  SAP Notes: Check for any SAP Notes related to LSMW and the specific error message for additional guidance or patches that may resolve the issue.
  
  By following these steps, you should be able to resolve the error message and successfully define the source structure in your LSMW project.