Final answer:
Custom fields can typically be accessed from the settings or options menu and the data entry forms in a software application, where users can manage and input data into these additional fields.
Step-by-step explanation:
Custom fields can be accessed from two main locations within various software platforms or systems.
One common location is within the settings or options menu of an application, where administrators or users with the necessary permissions can manage and create custom fields for their data models.
Another location to access custom fields is directly within the data entry forms themselves, where these fields can be filled with data or managed when creating or editing records.
Examples of this could include CRM systems where sales data can be customized with extra fields, or project management tools that allow the addition of custom fields to tailor the information associated with tasks or projects.
An understanding of how to navigate to these areas is important for anyone looking to customize their databases or workflows within a software application.