Message type: E = Error
Message class:  SADL_GW_PUSHDOWN_GEN - MDE parser and generator 
Message number: 012
Message text: Incomplete MDE: Annotations missing for 1 or more elements
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The SAP error message SADL_GW_PUSHDOWN_GEN012 indicates that there is an issue with the metadata definition for a service in the SAP Gateway. Specifically, it means that there are missing annotations for one or more elements in the metadata definition, which are required for the service to function correctly.
Cause: Missing Annotations: The error typically arises when the OData service is expected to have certain annotations that are not defined. Annotations provide additional information about the data model, such as data types, constraints, and relationships. Incomplete Metadata: The metadata for the OData service may not be fully defined or may be missing critical elements that are necessary for the service to process requests correctly. Model Changes: If there have been recent changes to the underlying data model or service definition, it may lead to inconsistencies in the annotations.
Solution: Check Annotations: Review the annotations in the metadata definition of the OData service. Ensure that all required annotations
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