How To Fix FCO_ODATA_SETTLEMENT010 - Internal error: not ONE root node !

SAP Error Message - Details

• Message type: E = Error

• Message class: FCO_ODATA_SETTLEMENT - Messages for settlement fiori application

• Message number: 010

• Message text: Internal error: not ONE root node !

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 FCO_ODATA_SETTLEMENT010 - Internal error: not ONE root node ! ?

  The SAP error message "FCO_ODATA_SETTLEMENT010 Internal error: not ONE root node!" typically occurs in the context of OData services, particularly when dealing with data retrieval or manipulation in SAP systems. This error indicates that the OData service is expecting a single root node in the response, but it is receiving multiple root nodes or an unexpected structure.
  Causes:
  
  Incorrect OData Service Configuration: The OData service may not be configured correctly, leading to an unexpected response structure.
  Data Model Issues: The underlying data model may be returning multiple records or entities when only one is expected.
  Service Implementation Errors: There may be issues in the implementation of the OData service, such as incorrect handling of query parameters or response formatting.
  Backend Logic Errors: The logic in the backend (e.g., ABAP code) that generates the OData response may be flawed, resulting in multiple root nodes being returned.
  
  Solutions:
  
  Check OData Service Configuration: Review the configuration of the OData service in the SAP Gateway. Ensure that the service is set up to return the expected data structure.
  Review Data Model: Analyze the data model and ensure that the service is designed to return a single entity when that is the expected behavior. If multiple records are valid, consider modifying the service to handle that case appropriately.
  Debug the OData Service: Use transaction /IWFND/ERROR_LOG to check for any errors related to the OData service. Debugging the service implementation can help identify where the response is being incorrectly formed.
  Check Backend Logic: Review the ABAP code or any other backend logic that generates the OData response. Ensure that it is correctly filtering and formatting the data.
  Test with Different Parameters: If applicable, test the OData service with different query parameters to see if the issue persists. This can help isolate the problem.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error.
  
  Related Information:
  
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. Understanding how OData services work in SAP can help in troubleshooting issues.
  SAP Gateway: The SAP Gateway is the technology that enables the connection between SAP systems and external applications via OData services.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /IWFND/MAINT_SERVICE for managing OData services and /IWFND/ERROR_LOG for checking error logs.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support or consult with a technical expert familiar with OData services in SAP.