Message type: E = Error
Message class:  CNV_DMC_MC - Migration Object Modeler 
Message number: 057
Message text: Source structure '&1' created
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The SAP error message CNV_DMC_MC057 typically indicates that a source structure has been created in the context of a data migration or conversion process using the SAP Data Migration Cockpit (DMC). This message is often part of the data migration process where the system is informing you that a new source structure has been defined.
Cause: New Source Structure: The error message is generated when a new source structure is created during the data migration process. This can happen if the source data does not match any existing structures in the system.
Configuration Issues: There may be issues with the configuration of the data migration project, such as missing mappings or incorrect settings. Data Model Changes: Changes in the data model or the source system can lead to the creation of new structures that were not previously defined.
Solution: Review the Source Structure: Check the details of the newly created source structure. Ensure that it aligns
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