How To Fix /IWFND/CM_V4_COS008 - Data container sub-structure for complex type &1 not created

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_V4_COS -

• Message number: 008

• Message text: Data container sub-structure for complex type &1 not created

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_V4_COS008 - Data container sub-structure for complex type &1 not created ?

  The SAP error message /IWFND/CM_V4_COS008 indicates that there is an issue with the data container sub-structure for a complex type in an OData service. This error typically arises when the system is unable to create the necessary data structure for a complex type defined in the OData service.
  Cause:
  
  Missing or Incorrect Definition: The complex type may not be defined correctly in the Data Dictionary (DDIC) or in the OData service metadata.
  Inconsistent Data Model: There may be inconsistencies in the data model, such as missing associations or incorrect mappings.
  Transport Issues: If the OData service was transported from one system to another, there may be missing dependencies or objects.
  Versioning Issues: If there are multiple versions of the OData service, the system may be trying to access an outdated or incorrect version.
  
  Solution:
  
  Check Complex Type Definition: Verify that the complex type is correctly defined in the Data Dictionary. Ensure that all fields and associations are properly specified.
  Regenerate OData Service: If changes were made to the data model, regenerate the OData service using transaction /IWFND/MAINT_SERVICE to ensure that the service reflects the latest definitions.
  Check Metadata: Use the OData service's metadata URL (e.g., /sap/opu/odata/sap/<service_name>/$metadata) to check if the complex type is correctly defined in the metadata.
  Debugging: Use transaction SE80 or SE11 to debug the data model and check for any inconsistencies or missing elements.
  Transport Check: If the issue arose after a transport, ensure that all necessary objects were included in the transport request.
  Clear Cache: Sometimes, clearing the cache can resolve issues related to outdated metadata. You can do this using transaction /IWFND/CACHE to clear the OData cache.
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To maintain OData services.
  /IWFND/CACHE: To clear the OData cache.
  SE80 or SE11: To check and modify the Data Dictionary objects.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Documentation: Refer to the SAP Help Portal for documentation on OData services and complex types for further understanding.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWFND/CM_V4_COS008 error message.