3774900 - Error CDS-Entity does not contain a key field upon adding the CDS Entity to the SEGW project

Symptom

In Service Builder (SEGW), attempting to add or activate a CDS entity results in the error: "CDS-Entity <entity_name> does not contain a key field"

Environment

SAP Gateway

Product

SAP Gateway all versions

Keywords

SEGW, Service Builder, CDS-Entity does not contain a key field, OData, entity key, CDS view, ABAP Development Tools, redefine OData service, activation error, SQL view name, Gateway, custom cds view, core data services, eclipse, adt , KBA , OPU-BSE-SB , Service Builder , OPU-GW-COR , Framework , Problem

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