SAAS integrate with companies employees that use okta?

I am a web developer for a SaaS-based vendor company. One of our clients, a company that has all of their 400 employees using Okta for their identity management, wants to integrate our services into their workflow.

Our primary goal is to allow these employees to seamlessly log into our platform using their Okta credentials so that they can order items from our company without needing to manage another set of login details. We’re aiming for a Single Sign-On (SSO) solution, but we’re unsure about the best way to implement this.

Could someone guide me through the necessary steps or resources to achieve this integration?

Specifically, I’m looking for assistance with:

  1. How to configure the SSO setup between our SaaS application and Okta through Auth0.
  2. Any specific protocols we need to follow (e.g., SAML, OIDC).
  3. How to handle user provisioning and de-provisioning.
  4. Recommendations for handling any security considerations.

Any help or direction would be greatly appreciated.

Thank you in advance.