How To Fix /IWBEP/CM_V4_MED087 - Abstract entity type '&1' cannot inherit from entity type '&2'

/IWBEP/CM_V4_MED087 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 087

• Message text: Abstract entity type '&1' cannot inherit from entity type '&2'

Self-Explanatory Message

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/IWBEP/CM_V4_MED087 - Details

• The SAP error message /IWBEP/CM_V4_MED087 indicates that there is an issue with the inheritance of entity types in your OData service. Specifically, it states that an abstract entity type (denoted as &1) cannot inherit from a concrete entity type (denoted as &2). This is a common issue when defining entity types in the OData model.
  
  Cause:
  
  
  Abstract vs. Concrete Entity Types: In OData, an abstract entity type is one that cannot be instantiated directly; it is meant to be a base type for other entity types. A concrete entity type, on the other hand, can be instantiated and represents a real entity in the data model. The error occurs when you try to make an abstract entity type inherit from a concrete entity type, which is not allowed.
  
  
  Model Definition Issues: This error can arise from incorrect definitions in the OData model, such as:
  
  Incorrectly defining the abstract entity type.
  Misconfiguring the inheritance hierarchy in