How To Fix FDT_EXPRESSIONS518 - Unknown function &1 used in formula

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 518

• Message text: Unknown function &1 used in formula

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS518 - Unknown function &1 used in formula ?

  The SAP error message FDT_EXPRESSIONS518 indicates that there is an unknown function being used in a formula within the context of SAP's Flexible Data Import (FDI) or similar functionalities that utilize expressions. This error typically arises when the system encounters a function in a formula that it does not recognize or that is not defined in the current context.
  
  Cause:
  
  Typographical Error: The function name may be misspelled or incorrectly formatted.
  Function Not Supported: The function being used may not be supported in the version of SAP you are using or in the specific context of the formula.
  Missing Function Definition: The function may not be defined in the system or may require additional configuration to be recognized.
  Contextual Issues: The function may be valid in one context but not in another, such as being used in a different type of formula or expression.
  
  
  Solution:
  
  Check for Typos: Review the formula for any spelling mistakes or incorrect