Clarification needed on notice period auto-population for shift employees upon termination and user

Summary:

Need clarification on Shift Employees, on termination when the username gets deactivated on the last working day or next day.

Content (please ensure you mask any confidential information):

For shift employees, when a user is terminated, at what point is their username deactivated - on the last working day or the next day? Please provide guidance on the notice period calculation and system deactivation process for shift employees.

Version (include the version you are using, if applicable): 25A

Code Snippet (add any code snippets that support your topic, if applicable):