How To Fix /IWBEP/CM_MGW_RT027 - Operation '&1' not supported for entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 027

• Message text: Operation '&1' not supported for entity type '&2'

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT027 - Operation '&1' not supported for entity type '&2' ?

  The SAP error message /IWBEP/CM_MGW_RT027 indicates that an operation (like GET, POST, PUT, DELETE) is not supported for a specific entity type in the context of an OData service. This error typically arises when the OData service is trying to perform an operation that is not defined or allowed for the specified entity type.
  Causes:
  
  Unsupported Operation: The operation you are trying to perform (e.g., creating, updating, or deleting an entity) is not supported for the specified entity type.
  Entity Type Configuration: The entity type may not be configured correctly in the OData service. For example, it may be read-only or not have the necessary CRUD (Create, Read, Update, Delete) operations defined.
  Service Implementation: The backend implementation of the OData service may not have the necessary logic to handle the requested operation for that entity type.
  Authorization Issues: Sometimes, the user may not have the necessary permissions to perform the operation on the entity type.
  
  Solutions:
  
  Check OData Service Metadata: Review the metadata of the OData service to confirm which operations are supported for the entity type in question. You can access the metadata by appending $metadata to the service URL.
  Review Entity Type Configuration: Ensure that the entity type is configured correctly in the service definition. If it is meant to support certain operations, make sure those operations are implemented.
  Implement Missing Logic: If the operation is not implemented, you may need to add the necessary logic in the backend service implementation to handle the operation for the entity type.
  Check Authorization: Verify that the user has the necessary authorizations to perform the operation on the entity type. This may involve checking roles and permissions in the SAP system.
  Consult Documentation: Refer to the SAP documentation for OData services to understand the expected behavior and configuration for the specific entity type and operations.
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it defines operations for entity types can help in troubleshooting these issues.
  SAP Gateway: Familiarize yourself with SAP Gateway concepts, as it plays a crucial role in exposing OData services.
  Transaction Codes: Use transaction codes like /IWFND/MAINT_SERVICE to manage OData services and check their status.
  Debugging: If you have access, consider debugging the OData service to trace where the error occurs and understand the flow of data.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.