Login to your Testable account as an administrator.
Navigate to Account > Settings, check SAML 2.0 Authentication, then enter the following (see screen shot at end of step for reference):
IDP Metadata: Copy and paste the following:
Sign in to Okta Admin app to have this variable generated for you.
Team Login: Enter your preferred Subdomain Name.
Click Update Settings.
In Okta, select the Sign On tab for the Testable app, then click Edit.
Enter the Subdomain Name from step 2 into the corresponding field.
Click Save.
Done!
Notes:
IDP-initiated flows, SP-initiated flows, and Just in Time (JIT) provisioning are all supported.
Go to: https://[your-testable-subdomain].testable.io/login.
Click Login with Okta: