How To Fix RSDHA149 - Variable '&1' must be a single value parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 149

• Message text: Variable '&1' must be a single value parameter

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA149 - Variable '&1' must be a single value parameter ?

  The SAP error message RSDHA149 indicates that a variable in your query or report is expected to be a single value parameter, but it is being treated as a multiple value parameter. This typically occurs in the context of SAP BW (Business Warehouse) queries or reports where variables are used to filter data.
  Cause:
  
  Variable Definition: The variable &1 is defined in a way that allows multiple values, but the context in which it is being used requires it to be a single value.
  Query Design: The query or report is designed to accept only single values for certain parameters, but the variable is being populated with multiple values.
  User Input: If the variable is set to allow multiple selections, and the user selects more than one value, this can trigger the error.
  
  Solution:
  
  
  Check Variable Settings:
  
  Go to the variable definition in the query designer or the relevant transaction (e.g., RSZ* transactions).
  Ensure that the variable is set to accept only a single value if that is the intended use case.
  
  
  
  Modify Query:
  
  If the query is designed to accept only a single value, ensure that the variable is not set to allow multiple selections.
  If the variable should allow multiple values, consider modifying the query to handle multiple values appropriately.
  
  
  
  User Input Validation:
  
  If users are inputting values, provide clear instructions that only a single value should be selected.
  Implement validation checks in the report or query to prevent multiple selections if not allowed.
  
  
  
  Testing:
  
  After making changes, test the query or report to ensure that it behaves as expected and that the error does not occur.
  
  
  
  Related Information:
  
  SAP BW Query Designer: This is the tool used to create and modify queries in SAP BW. Familiarity with this tool is essential for managing variables and their properties.
  Variable Types: Understand the different types of variables in SAP BW (e.g., single value, multiple value, interval) and how they affect query execution.
  Documentation: Refer to SAP Help documentation for detailed information on variable handling and query design best practices.
  
  By addressing the variable settings and ensuring that the query design aligns with the expected input, you can resolve the RSDHA149 error effectively.