How To Fix /IWBEP/CM_MGW_BOP_DT023 - Unexpected data type: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_BOP_DT -

• Message number: 023

• Message text: Unexpected data type: &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_BOP_DT023 - Unexpected data type: &1 ?

  The SAP error message /IWBEP/CM_MGW_BOP_DT023 Unexpected data type: &1 typically occurs in the context of SAP Gateway and OData services. This error indicates that the system encountered a data type that it did not expect while processing an OData request or response.
  Cause:
  
  Data Type Mismatch: The error usually arises when there is a mismatch between the expected data type defined in the OData service and the actual data type being sent or received. This can happen if the data model has been changed but the service has not been updated accordingly.
  Incorrect Metadata: If the metadata of the OData service does not accurately reflect the underlying data model, it can lead to this error.
  Unsupported Data Types: The OData service may be trying to process a data type that is not supported by the OData protocol or by the SAP Gateway.
  
  Solution:
  
  Check Data Model: Review the data model used in the OData service. Ensure that the data types defined in the service match the actual data types in the underlying database or data source.
  Update OData Service: If there have been changes to the underlying data model, regenerate the OData service to ensure that the metadata is up to date. This can be done using transaction code /IWFND/MAINT_SERVICE to maintain the service and regenerate the metadata.
  Review Metadata: Use the OData service's metadata URL (usually something like /sap/opu/odata/sap/<service_name>/$metadata) to check the expected data types and ensure they match what is being sent or received.
  Debugging: If the issue persists, consider debugging the OData service to trace where the unexpected data type is being introduced. This may involve checking the implementation of the service methods (e.g., GET, POST) to see how data is being processed.
  Check for Unsupported Types: Ensure that the data types being used are supported by OData. For example, complex types or certain custom types may not be handled correctly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for OData services and SAP Gateway to understand the expected data types and how to define them correctly.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.