How To Fix EIT_GW_UI_TEXT009 - Array entry &1 of navigation property &2 must be an object.

SAP Error Message - Details

• Message type: E = Error

• Message class: EIT_GW_UI_TEXT - Extensibility Template: Translated Messages for Assembly

• Message number: 009

• Message text: Array entry &1 of navigation property &2 must be an object.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EIT_GW_UI_TEXT009 - Array entry &1 of navigation property &2 must be an object. ?

  The SAP error message EIT_GW_UI_TEXT009 indicates that there is an issue with the data structure being sent to the SAP Gateway, specifically related to navigation properties in an OData service. The error message states that "Array entry &1 of navigation property &2 must be an object," which typically means that the system is expecting an object (a structured data type) but is receiving something else (like a primitive type or an empty value).
  Cause:
  
  Incorrect Data Structure: The data being sent to the OData service does not conform to the expected structure. For example, if a navigation property is expected to be an array of objects, but the data provided is an array of primitive types (like strings or numbers), this error will occur.
  Missing Data: If the navigation property is supposed to contain objects but is empty or incorrectly formatted, this can trigger the error.
  Mapping Issues: There may be issues with how the data is being mapped from the source to the OData service, leading to incorrect data types being sent.
  
  Solution:
  
  Check Data Structure: Review the data being sent to the OData service. Ensure that the navigation property is being populated with the correct object structure. Each entry in the array should be a valid object as defined in the OData service metadata.
  Validate Input Data: Before sending data to the OData service, validate the input to ensure that it meets the expected format. This can include checking for null values, ensuring that the correct types are being used, and that all required fields are populated.
  Debugging: Use debugging tools to trace the data flow and identify where the incorrect data structure is being introduced. This may involve checking the code that prepares the data for the OData service.
  Review OData Service Metadata: Check the metadata of the OData service to understand the expected structure of the navigation properties. This can help in ensuring that the data being sent matches the expected format.
  
  Related Information:
  
  OData Service Documentation: Review the documentation for the specific OData service you are working with to understand the expected data structures and types.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for working with OData services.
  Community Forums: Consider searching or posting in SAP community forums or Stack Overflow for additional insights from other developers 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.