How To Fix SWF_EXP_001015 - Constant expected (expression '&1', position &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 015

• Message text: Constant expected (expression '&1', position &2)

What causes this issue?

A constant is expected in expression &V1& at position &V2&. However, the
specified (part) expression is not a constant.

System Response

The expression contains a syntax error and must be corrected.

How to fix this error?

Specify a constant using the delimiter characters '...' or "...".

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_EXP_001015 - Constant expected (expression '&1', position &2) ?

  The SAP error message SWF_EXP_001015 indicates that there is an issue with an expression in a workflow definition. Specifically, it suggests that a constant was expected at a certain position in the expression, but something else was found instead. This error typically occurs in the context of workflow expressions, where the syntax or the content of the expression does not meet the expected format.
  Cause:
  
  Incorrect Syntax: The expression may have a syntax error, such as missing quotes around a string constant or incorrect use of operators.
  Invalid Variable/Field: The expression might be referencing a variable or field that is not defined or is not accessible in the current context.
  Data Type Mismatch: The expression may be trying to use a data type that is not compatible with the expected constant type.
  Position Error: The error message specifies a position, which indicates where in the expression the parser encountered the issue. This can help identify the exact part of the expression that is problematic.
  
  Solution:
  
  Check the Expression Syntax: Review the expression for any syntax errors. Ensure that all constants are properly quoted and that the overall structure of the expression is correct.
  Verify Variables/Fields: Ensure that all variables or fields referenced in the expression are correctly defined and accessible in the workflow context.
  Data Type Validation: Check that the data types of the constants and variables used in the expression are compatible. If necessary, convert data types to match the expected types.
  Use the Position Information: Utilize the position information provided in the error message to pinpoint the exact location of the error in the expression. This can help in quickly identifying and correcting the issue.
  Testing: After making corrections, test the workflow to ensure that the error is resolved and that the workflow behaves as expected.
  
  Related Information:
  
  Workflow Development: Familiarize yourself with the workflow development environment in SAP, including how to create and manage expressions.
  SAP Documentation: Refer to the official SAP documentation for detailed information on workflow expressions and syntax rules.
  Community Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  Debugging Tools: Use debugging tools available in SAP to step through the workflow and identify where the error occurs.
  
  By following these steps, you should be able to resolve the SWF_EXP_001015 error and ensure that your workflow expressions are correctly defined.