How To Fix RS2HANA_VIEW121 - External SAP HANA view: Variable '&1' must be of type "Single Value"

RS2HANA_VIEW121 - Overview

• Message type: E = Error

• Message class: RS2HANA_VIEW - HANA Views for BW Objects

• Message number: 121

• Message text: External SAP HANA view: Variable '&1' must be of type "Single Value"

Self-Explanatory Message

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RS2HANA_VIEW121 - Details

• The SAP error message RS2HANA_VIEW121 indicates that there is an issue with a variable in an external SAP HANA view. Specifically, the error states that the variable &1 must be of type "Single Value." This typically occurs when a variable is expected to return a single value but is instead returning multiple values or is not properly defined.
  Cause
  The error can arise from several scenarios:
  
  Variable Definition: The variable in the HANA view is defined in such a way that it allows multiple values, but the context in which it is being used requires a single value.
  Input Parameters: If the variable is being used as an input parameter in a query or report, it may not be correctly set up to accept only a single value.
  Data Model Issues: The underlying data model may not be structured correctly, leading to multiple values being returned when only one is expected.
  
  Solution
  To resolve this error, you