How To Fix FDT_EXPRESSIONS842 - Importing parameter &1 has to be optional

FDT_EXPRESSIONS842 - Overview

• Message type: E = Error

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

• Message number: 842

• Message text: Importing parameter &1 has to be optional

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS842 - Importing parameter &1 has to be optional ?

  The SAP error message FDT_EXPRESSIONS842 indicates that there is an issue with the definition of an importing parameter in a function module or method. Specifically, the error states that the importing parameter &1 must be optional. This typically occurs in the context of using expressions or function modules in SAP's Flexible Data Import (FDI) or similar scenarios.
  
  Cause:
  The error arises when:
  
  An importing parameter is defined as mandatory, but the context in which it is being used requires it to be optional.
  The function module or method is being called in a way that does not provide a value for the mandatory parameter, leading to this error.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Parameter Definition:
  
  Go to the function module or method definition where the error is occurring.
  Verify the definition of the importing parameter &1. If it is defined as mandatory (i.e., it does not have a default value), consider changing