How To Fix /IWBEP/CM_CP201 - Select property '&1' not found in entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 201

• Message text: Select property '&1' not found in 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP201 - Select property '&1' not found in entity type '&2' ?

  The SAP error message /IWBEP/CM_CP201 Select property '&1' not found in entity type '&2' typically occurs in the context of SAP Gateway and OData services. This error indicates that a property (field) specified in the OData query is not recognized as part of the specified entity type. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Incorrect Property Name: The property name specified in the OData request does not match any of the properties defined in the entity type.
  Entity Type Mismatch: The entity type specified in the error message does not contain the property being requested.
  Model Changes: If there have been recent changes to the data model (e.g., adding or removing properties), the OData service may not be updated to reflect these changes.
  Service Metadata Issues: The metadata document for the OData service may not be correctly generated or may be outdated.
  
  Solutions:
  
  
  Check Property Name: Verify that the property name in the OData request matches exactly with the property names defined in the entity type. Pay attention to case sensitivity and spelling.
  
  
  Review Entity Type Definition: Check the definition of the entity type in the Data Model (e.g., in the SEGW transaction) to ensure that the property exists.
  
  
  Update OData Service: If changes were made to the underlying data model, ensure that the OData service is updated:
  
  Go to the SEGW transaction.
  Right-click on the project and select "Generate Runtime Objects" to regenerate the service.
  Activate the service if necessary.
  
  
  
  Check Service Metadata: Access the service metadata (usually at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to confirm that the property is listed under the correct entity type.
  
  
  Clear Cache: Sometimes, caching issues can cause discrepancies. Clear the cache of the OData service or restart the SAP Gateway service.
  
  
  Debugging: If the issue persists, consider debugging the OData service to trace where the error occurs and gather more context about the request being processed.
  
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol can help in troubleshooting issues related to entity types and properties.
  SAP Gateway: Familiarity with SAP Gateway and its transaction codes (like SEGW for service creation and maintenance) is essential for managing OData services.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on similar error messages.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWBEP/CM_CP201.