Follow these steps to configure Okta as your Checkbox Identity Provider (IdP) for SAML:
Log into Okta as an Administrator
Click on "Create App Integration"
Select "SAML 2.0" as the Sign-in Method
Input Application Name
Input single sign-on URL (see below for instructions)
Input Audience URI: any string should be matched with the Issuer on the Admin site.
Select the correct application username: By default, Checkbox uses emails as identifiers. If your Okta does the same, please select “Okta username”. If not, choose “Email”.
Complete the configuration
Add Users and Groups to the newly created Application (see below)