How To Fix KK457 - Item category & not allowed on this list screen

KK457 - Overview

• Message type: E = Error

• Message class: KK -

• Message number: 457

• Message text: Item category & not allowed on this list screen

What causes this issue?

You have entered an item category that is not permitted as a manual
entry in this list screen.
Example:
The item category "Material" cannot be entered, since it has an origin
(resource).

System Response

The system does not allow this item to be edited.

How to fix this error?

Enter an item category that is permitted as a manual entry in this list
screen (such as V, S, or T), or switch to another view.

Error message extract from SAP system. Copyright SAP SE.

KK457 - Details

• The SAP error message KK457 ("Item category & not allowed on this list screen") typically occurs in the context of controlling (CO) when you are trying to display or process a list of items related to cost centers, internal orders, or other controlling objects. This error indicates that the item category you are trying to use is not permitted for the specific list screen you are accessing.
  
  Cause:
  
  Item Category Restrictions: The item category you are trying to use is not configured to be displayed or processed in the specific list screen you are accessing. This could be due to system settings or configuration that restricts certain item categories from being used in specific contexts.
  
  Configuration Issues: There may be configuration settings in the controlling module that limit the item categories available for certain transactions or reports.
  User Authorizations: The user may not have the necessary authorizations to access certain item categories or the