How To Fix SWF_FLEX_RUN027 - Evaluation of expression '&1' failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_FLEX_RUN - Workflow: Runtime Errors

• Message number: 027

• Message text: Evaluation of expression '&1' failed

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_FLEX_RUN027 - Evaluation of expression '&1' failed ?

  The SAP error message SWF_FLEX_RUN027, which states "Evaluation of expression '&1' failed," typically occurs in the context of workflow management in SAP systems. This error indicates that there was an issue evaluating a specific expression in a workflow, which can be due to various reasons.
  Causes:
  
  Syntax Errors: The expression may contain syntax errors or invalid references.
  Data Type Mismatch: The expression might be trying to evaluate data types that are incompatible.
  Missing Variables: The expression may reference variables or attributes that are not defined or are not available in the current context.
  Logical Errors: There could be logical errors in the expression that prevent it from being evaluated correctly.
  Workflow Configuration Issues: The workflow itself may not be configured correctly, leading to issues when trying to evaluate expressions.
  
  Solutions:
  
  Check the Expression Syntax: Review the expression for any syntax errors. Ensure that it follows the correct format and conventions.
  Verify Data Types: Ensure that the data types of the variables used in the expression are compatible. If necessary, convert data types to match.
  Ensure Variables are Defined: Check that all variables and attributes referenced in the expression are defined and accessible in the current workflow context.
  Debug the Workflow: Use the workflow debugging tools in SAP to step through the workflow and identify where the evaluation fails.
  Review Workflow Configuration: Ensure that the workflow is configured correctly, including all necessary steps and conditions.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the expression language used in workflows.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Analysis) to analyze workflow instances and identify issues.
  Workflow Logs: Check the workflow logs for more detailed error messages or stack traces that can provide additional context for the failure.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error message.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.