How To Fix /IWFND/MED209 - Deep service inheritance not allowed

/IWFND/MED209 - Overview

• Message type: E = Error

• Message class: /IWFND/MED -

• Message number: 209

• Message text: Deep service inheritance not allowed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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/IWFND/MED209 - Details

• The SAP error message /IWFND/MED209 Deep service inheritance not allowed typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the way service inheritance is being handled in your OData service definition. Specifically, it suggests that the service is trying to inherit from a service that is not allowed due to the depth of the inheritance chain.
  
  Cause:
  
  Deep Inheritance: The error arises when there is an attempt to create a deep inheritance structure in OData services. SAP Gateway does not support deep service inheritance, which means that a service cannot inherit from another service that itself inherits from yet another service.
  Service Configuration: The configuration of the OData service may be set up incorrectly, leading to an attempt to create a deep inheritance structure.
  Model Definition: The data model defined in the service might be incorrectly set up, causing the service to attempt