How To Fix E2453 - Parameter field & is not a key field

E2453 - Overview

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 453

• Message text: Parameter field & is not a key field

What causes this issue?

The parameter field is a non-key field in a table that has key fields.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2453 - Parameter field & is not a key field ?

  The SAP error message E2453, which states "Parameter field & is not a key field," typically occurs in the context of ABAP programming or when working with certain SAP transactions that involve parameter fields in selection screens or data retrieval processes. This error indicates that a field you are trying to use as a parameter in a selection or query is not defined as a key field in the relevant database table or structure.
  
  Cause:
  
  Non-Key Field Usage: The field you are trying to use as a parameter is not defined as a key field in the database table. Key fields are essential for uniquely identifying records in a table.
  Incorrect Field Definition: The field may not be defined correctly in the data dictionary (SE11) or may not be included in the primary key of the table.
  Selection Screen Definition: If you are defining a selection screen and trying to use a non-key field