Message type: E = Error
Message class:  /IWBEP/CM_V4_MED -  
Message number: 304
Message text: Advertising property '&1' in entity type '&2' has incorrect facets
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The SAP error message /IWBEP/CM_V4_MED304 indicates that there is an issue with the metadata definition of an OData service, specifically related to the advertising properties of an entity type. This error typically arises when the facets of a property in an entity type do not conform to the expected structure or requirements defined in the OData protocol.
Cause: Incorrect Property Definition: The property specified in the error message (&1) may have been defined incorrectly in the metadata. This could include issues such as: Missing required facets (e.g., Nullable, MaxLength, etc.). Incorrect data types or formats. Invalid combinations of facets (e.g., a property marked as Nullable but also having a DefaultValue). Inconsistent Metadata: The entity type (&2) may have inconsistencies in its metadata definition, such as conflicting annotations or properties that do not align with the OData version being used. OData Version Mismatch: If the service is expected to conform to a specific OData version, but the properties
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