How To Fix SWF_HTTP062 - Parameter "&1" cannot be converted to a simple data type

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_HTTP - Web Services in the Workflow: Server Functions

• Message number: 062

• Message text: Parameter "&1" cannot be converted to a simple data type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_HTTP062 - Parameter "&1" cannot be converted to a simple data type ?

  The SAP error message SWF_HTTP062, which states "Parameter '&1' cannot be converted to a simple data type," typically occurs in the context of SAP Workflow or when dealing with HTTP services in SAP. This error indicates that there is an issue with the data type of a parameter being passed to a function or service, which cannot be converted to a simple data type (like string, integer, etc.).
  Cause:
  
  Data Type Mismatch: The parameter being passed is of a complex data type (like a structure or table) instead of a simple data type.
  Incorrect Mapping: If you are using a web service or an HTTP call, the parameters may not be correctly mapped to the expected data types.
  Configuration Issues: There may be issues in the configuration of the workflow or the service that is causing the parameters to be incorrectly defined.
  
  Solution:
  
  Check Parameter Types: Review the parameters being passed to ensure they are of the expected simple data types. If a complex type is being passed, you may need to extract the relevant simple data type from it.
  Adjust Mapping: If you are using a web service, check the mapping of the parameters in the service definition. Ensure that the parameters are correctly defined and match the expected types.
  Debugging: Use transaction codes like SWI1 (Workflow Overview) or SWI2_DIAG (Workflow Diagnosis) to trace the workflow and identify where the error is occurring. This can help you pinpoint the exact parameter causing the issue.
  Review Workflow Configuration: If the error is occurring in a workflow, review the workflow configuration to ensure that all parameters are correctly defined and that there are no discrepancies in the data types.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the function module or service you are working with to understand the expected parameter types.
  
  Related Information:
  
  Transaction Codes: SWI1, SWI2_DIAG, SWFVISU (Workflow Visualization)
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging Tools: Use the ABAP debugger to step through the code and inspect the values and types of parameters being passed.
  Community Forums: Consider checking SAP Community or other forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the SWF_HTTP062 error and implement a solution to resolve it.