Go to Settings > Connections.

Background checks (Checkr)
- Connect with an API key from your own Checkr account. You pay Checkr directly for each check.
- Pick the package for employees and candidates, and the package for volunteers.
- Set the default work state and city.
- Check Use Checkr staging to test with no charges.
- Click Save Checkr settings.
Until it's connected, Checkr runs in test mode and nothing is sent.
Other connections
- Card payments: Settings > Payments.
- Mailchimp: newsletters.
- DocuSeal: e-signatures.
To keep a saved key, leave its password box blank.