If a new employee named Appoline is having trouble logging in, what could be a necessary action?

The necessary action of ensuring that Appoline's username is spelled correctly and is active is crucial because a common issue with login attempts is simply a typo in the username or the use of an inactive account. When the username is not entered accurately, the system will typically not recognize it, leading to failed login attempts. Additionally, if the account is inactive, she would not be able to log in even if she is entering the correct username.

Verifying the activity status of her account is essential because even with the right username and password, if her account has been disabled or not activated, she won't gain access. This action is a foundational troubleshooting step in login issues and often resolves many authentication problems before moving on to more complex factors such as password resets or network access.