How To Fix DMC_RT_GEN009 - Target structure &1 is not mapped to any source structure

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_GEN - DMC: Nachrichten der Generierungfunktionen

• Message number: 009

• Message text: Target structure &1 is not mapped to any source structure

What causes this issue?

No source structure is mapped to the target structure. The system cannot
generate the runtime object that is required to transfer data, as the
target structure would not be filled with any data during the transfer.
You can map a source structure to the target structure in the
<ZK>Structure Mapping</> area.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_GEN009 - Target structure &1 is not mapped to any source structure ?

  The SAP error message DMC_RT_GEN009 indicates that there is a problem with the data mapping in your Data Migration Cockpit (DMC) project. Specifically, it means that the target structure (the structure you are trying to populate) is not mapped to any source structure (the structure from which you are trying to pull data). This can occur during data migration processes when the mapping between source and target data structures is not correctly defined.
  Causes:
  
  Missing Mapping: The target structure has not been mapped to any source structure in the DMC configuration.
  Incorrect Configuration: The mapping configuration may have been incorrectly set up or saved.
  Changes in Structures: Changes in the source or target structures after the initial mapping was created may lead to this error.
  Data Migration Template Issues: The data migration template may not have the necessary mappings defined.
  
  Solutions:
  
  
  Check Mapping Configuration:
  
  Go to the Data Migration Cockpit and check the mapping configuration for the specific target structure.
  Ensure that the target structure is correctly mapped to the appropriate source structure.
  
  
  
  Create or Update Mapping:
  
  If the mapping does not exist, create a new mapping between the target and source structures.
  If the mapping exists but is incorrect, update it to ensure it correctly reflects the data flow.
  
  
  
  Review Data Migration Template:
  
  Check the data migration template to ensure that all necessary mappings are defined.
  If you are using a predefined template, verify that it is compatible with your source and target structures.
  
  
  
  Validate Structures:
  
  Ensure that both the source and target structures are correctly defined and that there are no discrepancies in their definitions.
  
  
  
  Test Migration:
  
  After making the necessary changes, perform a test migration to ensure that the mappings are working as expected.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like LTMC (for the Data Migration Cockpit) to access the relevant migration projects.
  Documentation: Refer to SAP documentation for detailed guidance on setting up and managing data mappings in the Data Migration Cockpit.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message or provide updates and patches.
  
  By following these steps, you should be able to resolve the DMC_RT_GEN009 error and successfully map your target structure to the appropriate source structure.