How To Fix R9E013 - Source variable does not represent a single value

SAP Error Message - Details

• Message type: E = Error

• Message class: R9E - Error Messages for Query Designer .NET

• Message number: 013

• Message text: Source variable does not represent a single value

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R9E013 - Source variable does not represent a single value ?

  The SAP error message R9E013, which states "Source variable does not represent a single value," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when a query or report is trying to use a variable that is expected to return a single value, but instead returns multiple values or no values at all.
  Cause:
  
  Multiple Values Returned: The variable in question is defined in such a way that it can return multiple values, but the context of the query requires a single value.
  Incorrect Variable Definition: The variable may not be properly defined in the query or report, leading to ambiguity in the data being retrieved.
  Data Model Issues: There may be issues with the underlying data model, such as incorrect joins or relationships that cause the variable to return multiple records.
  Filter Conditions: The filter conditions applied to the variable may not be restrictive enough, allowing multiple values to be returned.
  
  Solution:
  
  Check Variable Definition: Review the definition of the variable in the query. Ensure that it is set to return a single value. If it is meant to return multiple values, consider changing the context in which it is used.
  Modify Query Filters: Adjust the filters applied to the query to ensure that they are restrictive enough to return a single value. This may involve adding additional conditions or refining existing ones.
  Review Data Model: Examine the underlying data model for any issues that may cause multiple records to be returned. Ensure that the relationships and joins are correctly defined.
  Use Aggregation: If appropriate, consider using aggregation functions to ensure that the query returns a single value. For example, using SUM, AVG, or other aggregate functions can help consolidate multiple records into a single value.
  Test with Different Inputs: If the variable is dynamic, test it with different inputs to see if it consistently returns multiple values. This can help identify specific scenarios that lead to the error.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on variable handling in queries and reports.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) and RSRT (Query Monitor) for troubleshooting and testing queries.
  
  By following these steps, you should be able to identify the cause of the R9E013 error and implement a solution to resolve it.