How To Fix /IWBEP/CM_MGW_RT164 - Name for complex type '&1' was not provided

/IWBEP/CM_MGW_RT164 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 164

• Message text: Name for complex type '&1' was not provided

Self-Explanatory Message

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/IWBEP/CM_MGW_RT164 - Details

• The SAP error message /IWBEP/CM_MGW_RT164 indicates that there is an issue with the definition of a complex type in your OData service. Specifically, the error message states that the name for a complex type is not provided, which is necessary for the OData service to function correctly.
  
  Cause:
  
  Missing Name for Complex Type: The error typically arises when a complex type is defined in the OData service but does not have a name assigned to it. This can happen if the metadata for the OData service is not correctly defined or if there is a misconfiguration in the service definition.
  Incorrect Annotations: If the annotations for the complex type are not properly set, it may lead to this error.
  Model Issues: There may be issues in the underlying data model or the way the service is generated.
  
  
  Solution:
  
  
  Check the Complex Type Definition:
  
  Go to the OData service definition in the SAP Gateway Service Builder (transaction code