How To Fix SWF_BND_001070 - Source expression '&1' is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_BND_001 - Messages for workflow binding class

• Message number: 070

• Message text: Source expression '&1' is invalid

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_BND_001070 - Source expression '&1' is invalid ?

  The SAP error message SWF_BND_001070, which states "Source expression '&1' is invalid," typically occurs in the context of workflow definitions in SAP Business Workflow. This error indicates that there is an issue with the expression used in a binding or a workflow step, which is not recognized or is incorrectly defined.
  Causes:
  
  Invalid Expression: The expression referenced in the error message may contain syntax errors or may not be defined correctly.
  Missing Context: The expression might be trying to access a variable or context that is not available in the current workflow step.
  Typographical Errors: There could be typographical errors in the expression, such as incorrect variable names or missing parameters.
  Data Type Mismatch: The expression may be trying to use a data type that is incompatible with the expected type in the workflow context.
  Changes in Workflow Structure: If the workflow structure has been modified (e.g., changes in the task or binding), it may lead to invalid expressions.
  
  Solutions:
  
  Check the Expression: Review the expression for any syntax errors or typographical mistakes. Ensure that all variables and parameters are correctly referenced.
  Verify Context Availability: Ensure that the variables or context elements used in the expression are available in the current workflow step. You may need to adjust the workflow to ensure the necessary data is accessible.
  Use the Correct Data Types: Make sure that the data types used in the expression match the expected types. If necessary, convert data types appropriately.
  Test the Workflow: After making changes, test the workflow to ensure that the error is resolved. Use the workflow log to trace any further issues.
  Consult Documentation: Refer to SAP documentation or help resources for specific syntax and examples related to workflow expressions.
  Debugging: If the issue persists, consider using debugging tools available in SAP to step through the workflow and identify where the expression is failing.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Workflow Documentation: Review SAP's official documentation on workflow expressions and bindings for best practices and examples.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the cause of the SWF_BND_001070 error in your SAP workflow.