Does Okta have a test environment?

Hi, I have created a custom application that integrates with Azure AD. In order for me to see if it is working, I obviously have to publish my application to the OIN. But because it takes around 2 months to get approval, I was wondering if Okta have a sandbox environment where I can publish my application so I can test it with AAD? And if you have, what does it cost? :slightly_smiling_face: