How To Fix CE508 - You should not select a key field for the field assignment

CE508 - Overview

• Message type: E = Error

• Message class: CE - CAPP messages

• Message number: 508

• Message text: You should not select a key field for the field assignment

What causes this issue?

Key fields cannot be used as a characteristic origin.

How to fix this error?

Please select a field which does not belong to the key.

Error message extract from SAP system. Copyright SAP SE.

CE508 - Details

• The SAP error message CE508, which states "You should not select a key field for the field assignment," typically occurs in the context of configuring field assignments in SAP, particularly when working with data structures or customizing certain functionalities.
  
  Cause:
  The error arises when a user attempts to assign a key field (a field that uniquely identifies a record in a database table) to a field assignment in a way that is not permitted. Key fields are essential for maintaining data integrity and uniqueness, and assigning them incorrectly can lead to data inconsistencies or logical errors in the application.
  
  Solution:
  To resolve the CE508 error, follow these steps:
  
  
  Review Field Assignments: Check the field assignments you are trying to configure. Ensure that you are not selecting any key fields for the assignment. Key fields typically include fields like IDs, codes, or any other fields that are designated as unique identifiers in the database.
  
  
  Use Non-Key Fields: