{"meta":{"title":"Understanding fields","intro":"Learn about the different fields and custom field types, how to add fields to your project, and how to manage custom fields.","product":"GitHub Issues","breadcrumbs":[{"href":"/en/issues","title":"GitHub Issues"},{"href":"/en/issues/planning-and-tracking-with-projects","title":"Projects"},{"href":"/en/issues/planning-and-tracking-with-projects/understanding-fields","title":"Understanding fields"}],"documentType":"subcategory"},"body":"# Understanding fields\n\nLearn about the different fields and custom field types, how to add fields to your project, and how to manage custom fields.\n\n## Links\n\n* [About text and number fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-text-and-number-fields)\n\n  You can add custom text and number fields to your project.\n\n* [About date fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-date-fields)\n\n  You can create custom date fields that can be set by typing a date or using a calendar.\n\n* [About single select fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-single-select-fields)\n\n  You can create single select fields with multiple options, each with a description and a color, that can be selected from a dropdown menu.\n\n* [About iteration fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-iteration-fields)\n\n  You can create iterations to plan upcoming work and group items.\n\n* [About issue fields in projects](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-issue-fields)\n\n  Learn how to use organization-level issue fields in your projects to track structured metadata like priority, effort, and dates.\n\n* [About parent issue and sub-issue progress fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-parent-issue-and-sub-issue-progress-fields)\n\n  You can show an issue's parent issue and view sub-issue progress in your projects.\n\n* [About pull request fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-pull-request-fields)\n\n  You can show a linked pull request and the pull request reviewers in your projects.\n\n* [About the issue type field](/en/issues/planning-and-tracking-with-projects/understanding-fields/about-the-issue-type-field)\n\n  You can show the type of the issue in your projects.\n\n* [Renaming custom fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/renaming-custom-fields)\n\n  Learn about renaming existing custom fields in your project.\n\n* [Deleting custom fields](/en/issues/planning-and-tracking-with-projects/understanding-fields/deleting-custom-fields)\n\n  Learn how to delete a custom field from your project."}