How To Fix DB240 - Variable &1 not allowed for type &2

DB240 - Overview

• Message type: E = Error

• Message class: DB - Messages for logical databases and background processing

• Message number: 240

• Message text: Variable &1 not allowed for type &2

What causes this issue?

Selection criteria in a variant should be filled using variables.
However, the selection criterion has type &V2&, and the selected
variable &v1& is not defined for this type.

How to fix this error?

Correct your entry or use the possible entries help.

Error message extract from SAP system. Copyright SAP SE.

DB240 - Details

• The SAP error message "DB240 Variable &1 not allowed for type &2" typically indicates an issue related to the use of a variable in a database operation that is not compatible with the expected data type. This error can occur in various contexts, such as when working with ABAP programs, database views, or SQL queries.
  
  Cause:
  
  Data Type Mismatch: The variable specified (represented by &1) is being used in a context where its data type (represented by &2) is not appropriate. For example, you might be trying to use a character variable where a numeric variable is expected.
  Incorrect Variable Declaration: The variable may not be declared correctly or may not be initialized properly before being used in a database operation.
  Database Constraints: The database schema may impose constraints that prevent the use of certain variable types in specific operations.
  
  
  Solution:
  
  Check Variable Declaration: Ensure that the variable is declared with the correct data type. Review