How To Fix FDT_WD_SERVICE062 - Structures and tables are not permitted as result

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_SERVICE - FDT_WD: Message class for messages in SFDT_WD_SERVICE

• Message number: 062

• Message text: Structures and tables are not permitted as result

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_SERVICE062 - Structures and tables are not permitted as result ?

  The SAP error message FDT_WD_SERVICE062 indicates that there is an issue with the data structure being returned by a Web Dynpro service. Specifically, the error states that "Structures and tables are not permitted as result." This typically occurs when a Web Dynpro application is trying to return a data structure or an internal table as a result, which is not allowed in the context of the service being called.
  Cause:
  
  Incorrect Data Type: The service is attempting to return a structure or an internal table instead of a single value or a simple data type.
  Web Dynpro Configuration: The Web Dynpro component or the service method may be incorrectly configured to return a complex type instead of a simple type.
  Service Interface Definition: The interface defined for the service may not support returning complex data types.
  
  Solution:
  
  Check the Return Type: Ensure that the method or service you are calling is designed to return a simple data type (like a string, integer, etc.) rather than a structure or table.
  Modify the Service: If you need to return complex data, consider modifying the service to return a simple type or create a new service that can handle complex data types appropriately.
  Use a Different Approach: If you need to return multiple values, consider returning a single object that encapsulates the necessary data instead of returning a structure or table directly.
  Review Web Dynpro Component: Check the Web Dynpro component configuration to ensure that the data binding and return types are set correctly.
  Debugging: Use debugging tools to trace the execution and identify where the incorrect return type is being set.
  
  Related Information:
  
  Web Dynpro Documentation: Review the SAP documentation on Web Dynpro for guidelines on data types and service interfaces.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By addressing the return type and ensuring that the service is configured correctly, you should be able to resolve the FDT_WD_SERVICE062 error.