Enter the Client ID and Client Secret of your own
OAuth 2.0 (3LO) app
and the address of your Jira site. You will be redirected to Atlassian to sign in
with your service account and grant access.
Before you start — you need an OAuth 2.0 (3LO) app with the callback URL of this
connector and the scopes required by Secure Custom Fields. The full walkthrough is in the
documentation: