How To Fix FDT_EXPRESSIONS889 - &1 must return only first match to be used in expression language

FDT_EXPRESSIONS889 - Overview

• Message type: E = Error

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

• Message number: 889

• Message text: &1 must return only first match to be used in expression language

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS889 - &1 must return only first match to be used in expression language ?

  The SAP error message FDT_EXPRESSIONS889 indicates that an expression in the context of the SAP Fiori Design Time (FDT) framework is returning multiple matches when it is expected to return only a single match. This typically occurs in scenarios where an expression is evaluated, and the system finds more than one valid result, which is not permissible in the context of the expression language being used.
  
  Cause:
  
  Ambiguous Expression: The expression you are using may be too broad or not specific enough, leading to multiple results being returned.
  Data Model Issues: The underlying data model may have multiple entries that match the criteria specified in the expression.
  Incorrect Logic: The logic used in the expression may not be correctly formulated to ensure it returns a single value.
  
  
  Solution:
  
  
  Refine the Expression: Modify the expression to be more specific. Ensure that it targets a unique entry in the data model. This may involve adding additional filters or