How To Fix /IWBEP/CM_SBMG053 - Cannot extend the model, as all properties are already selected

/IWBEP/CM_SBMG053 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_SBMG -

• Message number: 053

• Message text: Cannot extend the model, as all properties are already selected

Self-Explanatory Message

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/IWBEP/CM_SBMG053 - Details

• The SAP error message /IWBEP/CM_SBMG053 indicates that you are trying to extend a model in SAP Gateway, but all properties of the model have already been selected. This typically occurs when you attempt to add additional properties to an existing OData service that has already defined all its properties.
  
  Cause:
  
  All Properties Selected: The error arises because the model you are trying to extend has already included all its properties, and there is no room to add more.
  Model Configuration: The model might be configured in such a way that it does not allow for further extensions or modifications.
  Service Definition: The OData service definition may have reached its limit in terms of the number of properties that can be selected.
  
  
  Solution:
  
  
  Review the Model: Check the existing model to confirm which properties are already included. You can do this by examining the service metadata or the model definition in the SAP Gateway Service Builder (transaction