Message type: E = Error
Message class:  /IWBEP/CM_V4_MED -  
Message number: 190
Message text: Invalid internal name '&1'; prefix 'SAP__' is reserved
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The SAP error message /IWBEP/CM_V4_MED190 Invalid internal name '&1'; prefix 'SAP__' is reserved typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the naming convention of an internal name used in your OData service or model. Specifically, it points out that the prefix SAP__ is reserved for internal SAP use, and therefore, cannot be used for custom or user-defined names.
Cause: Invalid Naming Convention: The internal name you are trying to use starts with the reserved prefix SAP__. This prefix is reserved for SAP's internal use and cannot be used in custom implementations. Model Definition Issues: If you are defining entities, properties, or other elements in your OData model, and you inadvertently use a name that starts with SAP__, this error will be triggered. Code Generation: If you are generating code or metadata for your OData service, the generation process might be attempting
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