How To Fix SWF_RLS_001172 - The right operand of operator '&1' must be interpretable as a number

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RLS_001 - Condition Evaluation and Rule Evaluation

• Message number: 172

• Message text: The right operand of operator '&1' must be interpretable as a number

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_RLS_001172 - The right operand of operator '&1' must be interpretable as a number ?

  The SAP error message SWF_RLS_001172 indicates that there is an issue with a comparison or arithmetic operation in a workflow or business process where one of the operands is expected to be a number, but it is not. This typically occurs in the context of workflow rules or conditions where the system is trying to evaluate an expression.
  Cause:
  The error is caused by one of the following:
  
  Data Type Mismatch: The right operand of the operator (e.g., +, -, *, /, =, >, <, etc.) is not a numeric value. It could be a string, null, or an incompatible data type.
  Incorrect Variable Assignment: A variable that is expected to hold a numeric value may have been assigned a non-numeric value.
  Workflow Logic Error: There may be a logical error in the workflow where the conditions or expressions are not correctly defined.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Workflow Logic:
  
  Review the workflow where the error occurs. Look for the specific operator mentioned in the error message and identify the operands involved.
  Ensure that both operands are of the correct data type (numeric).
  
  
  
  Validate Variable Assignments:
  
  Check the variables used in the expression. Ensure that they are being assigned numeric values before they are used in the operation.
  If a variable is being populated from a database or user input, ensure that the source data is valid and numeric.
  
  
  
  Use Type Conversion:
  
  If you are dealing with string representations of numbers, consider using type conversion functions to convert them to numeric types before performing operations.
  For example, in ABAP, you can use CONVERT or CAST functions to ensure the data type is correct.
  
  
  
  Debugging:
  
  If you have access to debugging tools, use them to step through the workflow and inspect the values of the variables at runtime. This can help identify where the non-numeric value is coming from.
  
  
  
  Error Handling:
  
  Implement error handling in your workflow to catch such issues and provide meaningful messages or fallback logic.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal for documentation on workflows and expressions to understand the expected data types and operators.
  Community Forums: Check SAP Community or other forums for similar issues and solutions shared by other users.
  SAP Notes: Search for any relevant SAP Notes that might address this specific error or provide additional context.
  
  By following these steps, you should be able to identify and resolve the cause of the SWF_RLS_001172 error in your SAP workflow.