Prompt
Do I need SSO for a product that already has username and password login?
Latest observation
Oct 7, 2026
OpenAI APIWeb search: off
Not necessarily. SSO is not required just because you already have username/password login.
When you don’t need SSO
If your product is:
- used by individuals,
- has a small/simple user base,
- doesn’t need to integrate with a company’s identity provider,
- and you’re fine managing accounts/passwords yourself,
then username/password may be enough.
When SSO is worth adding
SSO is usually useful if your customers:
- are businesses or enterprises
- want users to log in with Google, Microsoft, Okta, Azure AD, etc.
- need centralized user management
- want easier offboarding/access control
- have security/compliance requirements
Common setup
Many products support both:
- email/password login for standard users
- SSO for enterprise customers
That’s often the best approach because it gives flexibility without forcing SSO on everyone.
Bottom line
You only need SSO if your users or business requirements call for it.
If you want, I can help you decide based on your product type, customer base, and sales model.