How To Fix WER026 - Expression name &1 already exist

WER026 - Overview

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 026

• Message text: Expression name &1 already exist

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 WER026 - Expression name &1 already exist ?

  SAP Error Message:
  WER026 - Expression name &1 already exist
  
  
  Cause:
  This error occurs when you try to create or define an expression (e.g., in a rule, condition, or formula) with a name that already exists in the current context or environment. SAP does not allow duplicate expression names because each expression must be uniquely identifiable.
  
  Explanation:
  
  The placeholder &1 in the message will be replaced by the actual expression name you attempted to use.
  This typically happens in areas like BRF+ (Business Rule Framework plus), condition techniques, or any SAP tool where expressions or variables are defined.
  The system checks for uniqueness of expression names and throws this error if a duplicate is detected.
  
  
  
  Solution:
  
  
  Check Existing Expressions:
  
  Review the list of existing expressions in the current context or application.
  Identify if the expression name you want to use is already taken.
  
  
  
  Rename the Expression:
  
  Choose a unique name for your new expression.
  Use a naming convention that avoids conflicts, such as prefixing