Message type: E = Error
Message class:  USMD1 - Datenmodel 
Message number: 230
Message text: ********* Messages for Custom Structures *****************************
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The SAP error message USMD1230 typically relates to issues encountered in the context of SAP Master Data Governance (MDG), particularly when dealing with custom structures. This error message indicates that there are problems with the configuration or implementation of custom data models or structures in the MDG environment.
Cause: Custom Structure Issues: The error may arise if there are inconsistencies or misconfigurations in the custom structures defined in the MDG system. Data Model Configuration: If the data model is not properly configured or if there are missing elements in the custom structure, it can lead to this error. Field Mappings: Incorrect field mappings or missing fields in the custom structure can also trigger this error. Transport Issues: If the custom structures were transported from a development environment to a production environment without proper adjustments, it could lead to this error.
Solution: Check Custom Structure Configuration: Review the configuration of the custom structures in the MDG system. Ensure
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