BitaBIZ support SAML 2.0. OKTA supports SAML 2.0 as the method to activate single sign on to company resources like BitaBIZ.
Guide to set-up SSO to your BitaBIZ account using OKTA custom application.
Login to your OKTA admin page.
Click Applications > Add Application:

Click Create New App:

Select the Web as Platform and choose SAML 2.0 as Sign on the method. Then click Create:

In App name select a name to the new app ie. BitaBIZ and click Next:

Login to BitaBIZ as an admin and go to Setup admin > SAML 2.0.
Copy Entity ID and Assertion Consumer Service URL from BitaBIZ and insert into Audience URI (SP Entity ID) and Single sign-on URL respectively:

Then Click Next:

Select I'm an Okta Customer adding an internal app and select This is an internal app that we have created.
Then Click Finish:

Under Sign-on Click View setup instructions:

Login to BitaBIZ as an admin and go to Setup admin > SAML 2.0.
Copy Identity Provider Single Sign-On URL into Identity Provider Single Sign-On Service URL in BitaBIZ
Copy Identity Provider Issuer: into Identity Provider Issuer URL in BitaBIZ
Copy X.509 Certificate: into Signing Certificate (Base64 encoded) in BitaBIZ
select SSO enabled and finally click Save SAML SSO configuration:
