How To Fix /IWBEP/CM_V4_MED090 - Abstract complex type '&1' cannot inherit from complex type '&2'

/IWBEP/CM_V4_MED090 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 090

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

Self-Explanatory Message

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/IWBEP/CM_V4_MED090 - Details

• The SAP error message /IWBEP/CM_V4_MED090 indicates that there is an issue with the inheritance of complex types in your OData service definition. Specifically, it states that an abstract complex type (denoted as &1) cannot inherit from another complex type (denoted as &2). This typically occurs in the context of defining OData services using the SAP Gateway.
  
  Cause:
  
  Abstract Complex Type Definition: In OData, an abstract complex type cannot be instantiated directly and is meant to be a base type for other complex types. If you attempt to have an abstract complex type inherit from a non-abstract complex type, this error will occur.
  Incorrect Inheritance Structure: The inheritance structure defined in your service might not comply with OData specifications, leading to this error.
  Model Definition Issues: There may be issues in the way the data model is defined in the service, such as incorrect annotations or relationships.
  
  
  Solution:
  
  Review Complex Type Definitions: Check the definitions of the