Message type: E = Error
Message class:  USMDZ - Nachrichten für  MDGF Datenmodell (ohne Validierung) 
Message number: 109
Message text: Attribute &1/&2 from Customizing does not exist in the model
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The SAP error message USMDZ109 indicates that there is an issue with a specific attribute in the context of the SAP Master Data Governance (MDG) model. The message typically means that the attribute specified (denoted by &1 and &2) is not found in the model as defined in the Customizing settings.
Cause: Missing Attribute in Model: The attribute you are trying to use may not be defined in the MDG model. This could happen if the attribute was deleted or not included in the model configuration. Incorrect Configuration: There might be a mismatch between the Customizing settings and the actual model configuration. This can occur if changes were made in the Customizing without updating the model accordingly. Transport Issues: If the model was transported from one system to another (e.g., from development to production), the transport might not have included the necessary attributes or configurations. Versioning Issues: If you are working with different versions of
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