Message type: E = Error
Message class: USMD1A - Messages: Abstraction Layer
Message number: 004
Message text: Data model &1: Entity type &2 is unknown in data persistence
The active version of data model &V1& is not synchronous with the
generated persistence layer.
The saved data cannot be accessed.
Contact technical support.
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.
USMD1A004
- Data model &1: Entity type &2 is unknown in data persistence ?The SAP error message USMD1A004 indicates that there is an issue with the data model in the context of SAP Master Data Governance (MDG). Specifically, the error states that the entity type specified is unknown in the data persistence layer. This typically occurs when the system cannot find the definition of the entity type in the underlying database or data model. Causes: Missing Entity Definition: The entity type referenced in the error message may not be defined in the data model or may have been deleted or not activated. Incorrect Configuration: There may be a misconfiguration in the data model or the persistence layer that prevents the system from recognizing the entity type. Transport Issues: If the data model was recently transported from another system, there may have been issues during the transport process that led to missing or incomplete definitions. Version Mismatch: The version of the data model in the system may not match
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