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

SAP Error Message - Details

• 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 as a selection criterion, this error will occur.
  
  Solution:
  
  
  Check Field Definition:
  
  Go to transaction SE11 (Data Dictionary) and check the definition of the table or structure you are working with.
  Ensure that the field you are trying to use is indeed a key field. If it is not, you may need to reconsider your logic or use a different field that is a key.
  
  
  
  Modify the Selection Logic:
  
  If you are using this field in a selection screen, consider changing the logic to use a key field instead.
  You can also modify the program to handle the non-key field differently, such as using it for filtering after retrieving the data.
  
  
  
  Consult Documentation:
  
  Review the documentation for the specific transaction or program you are working with to understand the expected parameters and their definitions.
  
  
  
  Debugging:
  
  If you are working with custom ABAP code, use the debugger to trace where the error occurs and verify the field definitions being used.
  
  
  
  Consult with Basis or Development Team:
  
  If you are unsure about the field definitions or how to proceed, consult with your SAP Basis or development team for assistance.
  
  
  
  Related Information:
  
  Key Fields: In SAP, key fields are used to uniquely identify records in a database table. They are defined in the data dictionary and are crucial for operations like SELECT, UPDATE, and DELETE.
  Data Dictionary (SE11): This is the transaction code used to access the data dictionary in SAP, where you can view and modify table definitions, including key fields.
  ABAP Programming: Understanding ABAP programming concepts, especially regarding selection screens and database operations, can help in resolving such errors.
  
  By following these steps, you should be able to identify the cause of the E2453 error and implement a suitable solution.