How To Fix FDT_EXPRESSIONS502 - Formula is incorrect: unexpected token '&2' found after '&1'

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 502

• Message text: Formula is incorrect: unexpected token '&2' found after '&1'

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_EXPRESSIONS502 - Formula is incorrect: unexpected token '&2' found after '&1' ?

  The SAP error message FDT_EXPRESSIONS502 indicates that there is an issue with a formula in the context of SAP's Flexible Data Import (FDI) or similar functionalities that utilize expressions. The error message specifically states that there is an "unexpected token" found in the formula, which means that the syntax of the formula is incorrect.
  Cause:
  The error typically arises due to one or more of the following reasons:
  
  Syntax Error: There may be a typo or incorrect syntax in the formula. This could include missing operators, misplaced parentheses, or incorrect use of functions.
  Invalid Tokens: The formula may contain characters or tokens that are not recognized by the expression parser.
  Incorrect Data Types: The formula might be trying to perform operations on incompatible data types.
  Logical Errors: The formula may be logically incorrect, leading to unexpected tokens being interpreted by the parser.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Review the Formula: Carefully check the formula for any syntax errors. Look for:
  
  Missing operators (e.g., +, -, *, /)
  Incorrect use of parentheses
  Typos in function names or variable names
  
  
  
  Check for Invalid Tokens: Ensure that all tokens used in the formula are valid and recognized by the SAP expression parser. Remove or correct any unexpected characters.
  
  
  Validate Data Types: Ensure that the data types of the variables or fields used in the formula are compatible with the operations being performed. For example, you cannot perform arithmetic operations on string values.
  
  
  Use Debugging Tools: If available, use debugging tools or logs to trace the execution of the formula and identify where the error occurs.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the correct syntax and usage of expressions in the context you are working with.
  
  
  Test Incrementally: If the formula is complex, try breaking it down into smaller parts and testing each part individually to isolate the issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message.
  Community Forums: Look for discussions in SAP community forums or user groups where similar issues may have been addressed.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on expression syntax and usage.
  
  By following these steps, you should be able to identify and correct the issue causing the FDT_EXPRESSIONS502 error.