How To Fix /SAPDMC/LSMW101 - Error in function module '&' for argument '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPDMC/LSMW -

• Message number: 101

• Message text: Error in function module '&' for argument '&'

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPDMC/LSMW101 - Error in function module '&' for argument '&' ?

  The SAP error message /SAPDMC/LSMW101 Error in function module '&' for argument '&' typically occurs in the context of using the Legacy System Migration Workbench (LSMW) in SAP. This error indicates that there is an issue with a specific function module that is being called during the data migration process.
  Causes:
  
  Incorrect Function Module: The function module specified in the error message may not exist or may not be correctly defined.
  Invalid Arguments: The arguments being passed to the function module may be invalid or not in the expected format.
  Authorization Issues: The user executing the LSMW may not have the necessary authorizations to execute the function module.
  Data Issues: There may be issues with the data being processed, such as missing required fields or incorrect data types.
  Configuration Issues: The LSMW project may not be configured correctly, leading to errors when trying to execute the function module.
  
  Solutions:
  
  Check Function Module: Verify that the function module specified in the error message exists and is correctly implemented. You can do this by using transaction SE37 to check the function module.
  Review Arguments: Look at the arguments being passed to the function module. Ensure that they are valid and in the correct format. You may need to debug the LSMW process to see the exact values being passed.
  Authorization Check: Ensure that the user has the necessary authorizations to execute the function module. You can check this in transaction SU53 after the error occurs.
  Data Validation: Validate the data being used in the LSMW process. Ensure that all required fields are populated and that the data types match the expected formats.
  Configuration Review: Review the LSMW project configuration to ensure that all steps are correctly set up. This includes checking the source structure, target structure, and mapping.
  Debugging: If the issue persists, consider debugging the LSMW process to identify where the error occurs. You can set breakpoints in the function module or in the LSMW processing logic.
  
  Related Information:
  
  Transaction Codes: 
  
  LSMW: To access the Legacy System Migration Workbench.
  SE37: To view and edit function modules.
  SU53: To check authorization issues.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues with the specific function module or LSMW process.
  Documentation: Review SAP documentation on LSMW for best practices and troubleshooting tips.
  
  If the problem continues after trying the above solutions, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.