How To Fix /IWBEP/CM_CP123 - Internal type missing for property '&1' in entity type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 123

• Message text: Internal type missing for property '&1' 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_CP123 - Internal type missing for property '&1' in entity type '&2' ?

  The SAP error message /IWBEP/CM_CP123 Internal type missing for property '&1' in entity type '&2' typically occurs in the context of SAP Gateway and OData services. This error indicates that there is a missing internal type definition for a property in an entity type within your OData model. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Type Definition: The property specified in the error message does not have a corresponding internal type defined in the OData model. This can happen if the property is incorrectly defined or if the data type is not recognized by the system.
  Model Inconsistencies: There may be inconsistencies in the metadata of the OData service, such as changes in the underlying data model that have not been reflected in the OData service definition.
  Data Type Mismatch: The data type of the property in the underlying data source (like a database table) may not match the expected type in the OData service.
  
  Solution:
  
  Check Entity Type Definition: Review the entity type definition in your OData service. Ensure that all properties are correctly defined with appropriate data types.
  Update Metadata: If there have been changes to the underlying data model, regenerate the metadata for the OData service. This can often be done through transaction code /IWFND/MAINT_SERVICE or by using the relevant tools in the SAP Gateway.
  Check Data Types: Verify that the data types of the properties in the entity type match those in the underlying data source. If there are discrepancies, update the OData model accordingly.
  Rebuild the Service: If the issue persists, consider rebuilding the OData service. This can involve deleting and re-creating the service or using the relevant tools to refresh the service definition.
  Debugging: Use transaction code /IWFND/ERROR_LOG to check for additional error messages that might provide more context about the issue.
  
  Related Information:
  
  SAP Gateway: Understanding how SAP Gateway works and how it interacts with OData services can help in troubleshooting these types of errors.
  OData Service Maintenance: Familiarize yourself with the tools available for maintaining OData services, such as the Service Builder (transaction code SEGW).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. Sometimes, specific versions of SAP software may have bugs that are documented in SAP Notes.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWBEP/CM_CP123.