How To Fix FDT_EXPRESSIONS521 - Incorrect number of parameters specified for function &1

FDT_EXPRESSIONS521 - Overview

• Message type: E = Error

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

• Message number: 521

• Message text: Incorrect number of parameters specified for function &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_EXPRESSIONS521 - Incorrect number of parameters specified for function &1 ?

  The SAP error message FDT_EXPRESSIONS521 indicates that there is an issue with the number of parameters being passed to a function in a formula or expression within the SAP system. This error typically arises in the context of using the SAP Fiori Design Studio or SAP Smart Forms, where expressions and functions are defined.
  
  Cause:
  The error occurs when:
  
  A function is called with an incorrect number of parameters. Each function has a specific number of parameters it expects, and if the number provided does not match, this error will be triggered.
  The function may require mandatory parameters that are missing or may have optional parameters that are incorrectly specified.
  
  
  Solution:
  To resolve the error, follow these steps:
  
  
  Check Function Documentation: Review the documentation for the specific function you are using. Ensure that you understand how many parameters it requires and what types of values are expected.
  
  
  Verify Parameter Count: Go through the expression or formula where the