In Jira, a backlog is a prioritized list of work items that need to be completed. It serves as a repository for all the tasks, user stories, bugs, and other work items that are yet to be worked on or are in the planning stage. Backlogs are typically associated with agile project management methodologies such as Scrum and Kanban.
Backlogs are visualized as lists of items that can be sorted, filtered, and prioritized. Teams can easily move items between different backlogs, update their status, estimate effort, and collaborate on the work items. Backlogs provide a centralized view of all the work in progress and assist in effective planning, tracking, and delivery of projects.
Move issues to backlog
POST /rest/agile/1.0/backlog/issue
Move moves issues to the backlog.
This operation is equivalent to remove future and active sprints from a given set of issues.