How can Pamela ensure that each request includes the necessary cost center?

Making the field required is the most effective way for Pamela to ensure that each request includes the necessary cost center. When a field is required in a form or request submission, the system will prompt users to fill it out before they can successfully submit their requests. This approach minimizes the likelihood of omissions and ensures completeness of necessary information, which is crucial in maintaining clarity and tracking for budgetary purposes.

In contrast, asking for the cost center later would risk having incomplete submissions, resulting in delays as requests may need to be followed up. Providing a contact for questions does not ensure that the cost center is included initially, as it only offers assistance after the fact. Including an optional note may result in inconsistent or incomplete information since users may not feel compelled to add details, which does not guarantee the inclusion of the cost center. Therefore, requiring the field to be filled out is the most straightforward and reliable solution.