How To Fix /IWFND/CM_MGW538 - The entity type '&1' is not defined in the metadata

/IWFND/CM_MGW538 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_MGW -

• Message number: 538

• Message text: The entity type '&1' is not defined in the metadata

Self-Explanatory Message

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/IWFND/CM_MGW538 - Details

• The SAP error message /IWFND/CM_MGW538 indicates that the entity type specified in the request is not defined in the metadata of the OData service. This typically occurs when the OData service is not properly configured or when there is a mismatch between the request and the service's metadata.
  
  Cause:
  
  Entity Type Not Defined: The entity type referenced in the OData request does not exist in the service's metadata.
  Service Not Activated: The OData service may not be activated in the SAP Gateway.
  Incorrect URL: The URL used to access the OData service may be incorrect, leading to a request for a non-existent entity.
  Changes Not Reflected: If there have been recent changes to the data model (like adding or modifying entity types), the service might need to be reactivated or the metadata refreshed.
  Authorization Issues: The user may not have the necessary authorizations to access the entity type.
  
  
  Solution:
  
  Check Metadata: Use the OData service's metadata URL (usually