How To Fix BRAIN749 - Variable &1 in query properties must be a "single value" variable

BRAIN749 - Overview

• Message type: E = Error

• Message class: BRAIN -

• Message number: 749

• Message text: Variable &1 in query properties must be a "single value" variable

Self-Explanatory Message

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BRAIN749 - Details

• The SAP error message BRAIN749 indicates that there is an issue with a variable in a query that is expected to be a "single value" variable but is not configured correctly. This typically occurs in SAP BW (Business Warehouse) when you are working with queries in the BEx (Business Explorer) Query Designer.
  
  Cause:
  The error arises when:
  
  A variable that is supposed to accept only a single value (e.g., a characteristic that should only have one selection) is set up to allow multiple values or ranges.
  The query is trying to use a variable that is defined as a "multiple value" variable in a context where only a "single value" is acceptable.
  
  
  Solution:
  To resolve the BRAIN749 error, you can follow these steps:
  
  
  Check Variable Settings:
  
  Open the Query Designer and locate the query that is causing the error.
  Go to the properties of the variable in question (usually found in the "Variables" section).
  Ensure that the variable is set