How To Fix FDT_EXPRESSIONS039 - Sign &1 is not allowed for test parameter &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 039

• Message text: Sign &1 is not allowed for test parameter &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS039 - Sign &1 is not allowed for test parameter &2 ?

  The SAP error message FDT_EXPRESSIONS039 with the description "Sign &1 is not allowed for test parameter &2" typically occurs in the context of using the SAP FDT (Form Data Tool) or when working with expressions in SAP applications. This error indicates that there is an issue with the sign (positive or negative) being used in a test parameter within an expression.
  Cause:
  The error is caused by the use of an invalid sign for a test parameter in an expression. In SAP, certain test parameters may only accept specific signs (e.g., only positive values) and using an invalid sign (like a negative sign when it is not allowed) will trigger this error.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Expression: Review the expression where the error occurred. Look for the test parameter mentioned in the error message and verify the sign being used.
  
  
  Validate Parameter Requirements: Consult the documentation or configuration settings for the specific test parameter to understand what signs are allowed. Ensure that you are using a valid sign.
  
  
  Modify the Expression: If you find that the sign used is incorrect, modify the expression to use the appropriate sign that is allowed for the test parameter.
  
  
  Test the Changes: After making the necessary adjustments, test the expression again to ensure that the error is resolved.
  
  
  Consult SAP Notes: If the issue persists, check for any relevant SAP Notes or updates that may address this specific error or provide additional guidance.
  
  
  Related Information:
  
  SAP FDT Documentation: Review the official SAP documentation for the Form Data Tool to understand the rules and constraints regarding expressions and test parameters.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Debugging: If you have access to debugging tools, you can trace the execution of the expression to identify where the error is being triggered.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.