How To Fix DMC_RT_REMOTE_GEN012 - Function module &1 of function group &2 for migr.object &3 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_REMOTE_GEN - DMC Remote: Generation Function Messages

• Message number: 012

• Message text: Function module &1 of function group &2 for migr.object &3 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_REMOTE_GEN012 - Function module &1 of function group &2 for migr.object &3 already exists ?

  The SAP error message DMC_RT_REMOTE_GEN012 indicates that there is an attempt to create or register a function module that already exists in the system for a specific migration object. This typically occurs during data migration processes, such as when using the Data Migration Cockpit (DMC) or other tools that involve the creation of function modules dynamically.
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate Function Module: The function module specified in the error message already exists in the SAP system for the given migration object. This can happen if the migration process is attempted multiple times without proper cleanup or if there is a misconfiguration in the migration setup.
  Incorrect Migration Object Configuration: The migration object may be incorrectly configured, leading to attempts to create function modules that are already present.
  System Issues: There may be issues with the system's state, such as incomplete previous migration attempts or inconsistencies in the database.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Existing Function Module:
  
  Use transaction SE37 (Function Builder) to check if the function module already exists. If it does, you may need to modify your migration process to avoid creating it again.
  
  
  
  Cleanup Previous Migration Attempts:
  
  If the function module is not needed, you can delete it using transaction SE37. However, be cautious with this step, as it may affect other processes if the function module is in use.
  
  
  
  Review Migration Object Configuration:
  
  Ensure that the migration object configuration is correct and does not lead to duplicate function module creation. Check the settings in the Data Migration Cockpit or the relevant migration tool you are using.
  
  
  
  Check for System Consistency:
  
  Run consistency checks or use transaction SLG1 to check for any logs related to the migration process that might indicate other underlying issues.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with the error details and any relevant logs.
  
  
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SLG1 (Application Log), DMC (Data Migration Cockpit).
  SAP Notes: Search for specific SAP Notes related to DMC and migration errors for additional guidance.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit and related migration tools for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.