What is a Bucket Field used for?

A Bucket Field is specifically designed for use in reports within Salesforce to categorize and group report values without needing to create a custom field in the database. This functionality allows users to define specific ranges or categories based on existing field values, enabling dynamic groupings that enhance reporting capabilities.

For example, if you're working with sales data, you might create a Bucket Field to classify sales amounts into categories like "Low," "Medium," and "High," improving data visualization and analysis in reports. This means users can quickly derive insights and make decisions based on these groupings directly in their reports, leveraging the versatility of this feature.

The other options describe functionalities that, while related to data handling in Salesforce, do not accurately represent the primary purpose of Bucket Fields as they are specifically tailored for facilitating the grouping and categorization of values in report outputs.