Adding, editing, and deleting a custom field - Atlassian Documentationhttps://confluence.atlassian.com/adminjiracloud/adding-editing-and-deleting-a-custom-field-776636410.html
OAuth for REST APIshttps://developer.atlassian.com/cloud/jira/platform/jira-rest-api-oauth-authentication/
Rally Softwarehttps://www.broadcom.com/products/software/agile-development/rally-software
The Jira Cloud platform REST APIhttps://developer.atlassian.com/cloud/jira/platform/rest/v3/
The Jira Cloud platform REST APIhttps://developer.atlassian.com/cloud/jira/platform/rest/v2/