/IWBEP/SBUIOD021 - Type '&1' is not a data structure

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBUIOD -

• Message number: 021

• Message text: Type '&1' is not a data structure

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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AnswerBot

• What is the cause and solution for SAP error message /IWBEP/SBUIOD021 - Type '&1' is not a data structure ?

  The SAP error message /IWBEP/SBUIOD021 Type '&1' is not a data structure typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is expecting a data structure (like a complex type) but is encountering a type that is not recognized as such.
  Cause:
  
  Incorrect Type Definition: The type specified in the OData service is not defined as a data structure in the ABAP Dictionary. This could happen if the type is a primitive type (like string, integer, etc.) or if it is not defined at all.
  Service Metadata Issues: The OData service metadata might not be correctly defined or might be missing the necessary data structure definitions.
  Model Configuration: There could be issues with the way the OData model is configured, leading to the system not recognizing the type as a valid data structure.
  Versioning Issues: If there are multiple versions of the OData service, the wrong version might be referenced, leading to inconsistencies in type definitions.
  
  Solution:
  
  Check Type Definition: Ensure that the type referenced in the error message is defined as a data structure in the ABAP Dictionary (SE11). If it is not, you may need to create or modify the type accordingly.
  Update OData Service: If you have made changes to the data structure, ensure that you regenerate the OData service. You can do this by using transaction /IWFND/MAINT_SERVICE to maintain and activate the service.
  Check Metadata: Review the service metadata (accessible via the service URL with $metadata appended) to ensure that the type is correctly defined and appears as a data structure.
  Model Configuration: Verify the model configuration in the SAP Gateway Service Builder (transaction SEGW) to ensure that the types are correctly mapped and defined.
  Clear Cache: Sometimes, clearing the cache can resolve issues related to outdated metadata. You can do this by using transaction /IWFND/CACHE_CLEANUP.
  Check for Versioning Issues: If you are working with multiple versions of the OData service, ensure that you are using the correct version that has the appropriate type definitions.
  
  Related Information:
  
  Transaction Codes:
  
  SE11: Data Dictionary to check type definitions.
  SE80: Object Navigator for checking OData service definitions.
  SEGW: Service Builder for creating and maintaining OData services.
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance related to this error.
  Documentation: Review SAP documentation on OData services and data structures for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWBEP/SBUIOD021 Type '&1' is not a data structure.