How To Fix SWF_EXP_001171 - Unable to read result parameter '&1' of method '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 171

• Message text: Unable to read result parameter '&1' of method '&2'

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 SWF_EXP_001171 - Unable to read result parameter '&1' of method '&2' ?

  The SAP error message SWF_EXP_001171 indicates that there is an issue with reading a result parameter in a workflow. This error typically occurs in the context of SAP Business Workflow when the workflow engine is unable to retrieve the expected output from a method that was called during the workflow execution.
  
  Cause:
  
  Missing or Incorrect Parameter: The result parameter specified in the error message (&1) may not be defined correctly in the method (&2). This could be due to a typo, or the parameter may not exist in the method's definition.
  Method Execution Failure: The method might have failed to execute properly, leading to the absence of the expected result.
  Authorization Issues: The user executing the workflow may not have the necessary authorizations to access the method or its parameters.
  Data Type Mismatch: There could be a mismatch in the expected data type of the result parameter, causing the workflow to fail when trying to