How To Fix BRAIN045 - Variable &1 for characteristic &2 has been converted to a required entry

BRAIN045 - Overview

• Message type: E = Error

• Message class: BRAIN -

• Message number: 045

• Message text: Variable &1 for characteristic &2 has been converted to a required entry

What causes this issue?

In the following cases, an optional entry for &V1& is not possible:
&V1& is used in a selection row with exclude (SIGN = E).
&V1& is used in a selection row where the operator is not EQ or BETWEEN.
The selection row is an interval and both the From value and To value
are optional variables
The selection is a structure element (FEMS > 0) and consists of several
selection rows with include (SIGN = I) for the same characteristic

System Response

The variable&V1& is set as a mandatory entry in this query.

How to fix this error?

If you can permit the mandatory entry setting, you do not have to
perform any further steps.
Alternatively, you can use an optional interval variable. You can also
define two or more (hidden) selection elements, which you merge with a
formula element.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

BRAIN045 - Details

• The SAP error message BRAIN045 indicates that a variable in a query has been converted to a required entry. This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when a variable is defined in a way that it expects a mandatory input from the user, but the system is unable to process it as such.
  
  Cause:
  
  Variable Definition: The variable in question may have been defined as a mandatory input variable in the query definition. This means that the user must provide a value for this variable when executing the query.
  Default Values: If the variable is set to have a default value but that value is not valid or cannot be determined at runtime, the system may convert it to a required entry.
  User Input: The user may not have provided a value for the variable when executing the query, leading to the error.
  Data Source Issues: