How To Fix /IWBEP/CM_CP096 - Mapping error: Complex type '&1' with base type not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 096

• Message text: Mapping error: Complex type '&1' with base type not supported

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_CP096 - Mapping error: Complex type '&1' with base type not supported ?

  The SAP error message /IWBEP/CM_CP096 Mapping error: Complex type '&1' with base type not supported typically occurs in the context of SAP Gateway and OData services. This error indicates that there is a problem with the mapping of a complex type in your OData service, specifically that the complex type is based on a type that is not supported.
  Cause:
  
  Unsupported Base Type: The complex type you are trying to use is based on a primitive type or another complex type that is not supported by the OData service.
  Incorrect Data Model: The data model defined in the service might have inconsistencies or incorrect definitions that lead to this error.
  Version Compatibility: There may be compatibility issues between the version of the SAP Gateway and the data model being used.
  Service Definition Issues: The service definition might not be correctly set up to handle the complex type.
  
  Solution:
  
  Check Complex Type Definition: Review the definition of the complex type in the Data Model (e.g., in the SEGW transaction). Ensure that it is based on supported types.
  Modify Base Type: If the complex type is based on an unsupported base type, consider changing it to a supported type.
  Update Service: If you have made changes to the data model, regenerate the service and update the service implementation.
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes related to this issue.
  Review OData Service: Check the OData service implementation for any inconsistencies or errors in the mapping of the complex type.
  Consult Documentation: Refer to the SAP documentation for OData services and complex types to ensure compliance with the expected structure.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to OData services and complex types for any known issues or patches.
  Transaction Codes: Use transaction codes like SEGW (Service Builder) to manage your OData services and check the definitions of your complex types.
  Debugging: Use debugging tools to trace the execution of the OData service and identify where the mapping error occurs.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.