How To Fix FDT_EXPRESSIONS503 - Unknown symbol &1 found

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 503

• Message text: Unknown symbol &1 found

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 FDT_EXPRESSIONS503 - Unknown symbol &1 found ?

  The SAP error message FDT_EXPRESSIONS503 with the description "Unknown symbol &1 found" typically occurs in the context of SAP's Flexible Data Import (FDI) or when working with expressions in the context of SAP Fiori or other SAP applications that utilize expressions for data manipulation or transformation.
  Cause:
  This error generally indicates that the system has encountered a symbol or variable in an expression that it does not recognize. This could be due to several reasons:
  
  Typographical Error: There may be a typo in the expression where the symbol is defined.
  Undefined Variable: The symbol may not have been defined or initialized before it is used in the expression.
  Scope Issues: The symbol might be out of scope, meaning it is not accessible in the context where it is being used.
  Incorrect Syntax: The expression may have incorrect syntax, leading to the system being unable to parse it correctly.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check for Typos: Review the expression for any typographical errors in the symbol name.
  Define the Symbol: Ensure that the symbol is properly defined and initialized before it is used in the expression.
  Review Scope: Check the scope of the variable to ensure it is accessible in the context where it is being used.
  Validate Syntax: Ensure that the expression follows the correct syntax rules for the language or framework you are using.
  Debugging: If possible, use debugging tools to step through the code and identify where the error occurs.
  Consult Documentation: Refer to the SAP documentation for the specific context in which you are working to ensure you are using the correct syntax and symbols.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Look for discussions in SAP Community or other forums where similar issues may have been addressed.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on expressions and data handling in the specific SAP module you are working with.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.