Do I need to support Google Workspace for B2B auth?

Not always, but often yes if you’re selling to businesses.

Short answer

If your customers are B2B companies, you usually want to support Google Workspace because many companies use it as their identity provider for SSO and user management. But whether you need to depends on:

• Who your customers are
• How they authenticate
• Whether enterprise buyers expect SSO / SCIM / domain-based login
• What your product category is

When you should support it

You probably should support Google Workspace if:

• You sell to teams or enterprises
• Customers ask for Google SSO
• You want users to sign in with their corporate Google account
• You need to support managed business identities rather than only personal Gmail accounts
• You’re competing in a space where enterprise auth is expected

When it may not be necessary

You may not need it if:

• Your product is SMB-only and users are happy with email/password or magic links
• Your customers use another IdP standard like Microsoft Entra ID (Azure AD), Okta, or Auth0
• You’re not targeting enterprise procurement
• Your app doesn’t store sensitive data or need centralized access control

Important distinction

“Support Google” can mean different things:

1. Sign in with Google

   • Easy OAuth login
   • Works for both consumer Gmail and Google Workspace users

2. Google Workspace SSO / OIDC / SAML

   • Enterprise-grade login for managed org accounts
   • Often part of a broader SSO strategy

3. Domain verification / org discovery

   • Useful for routing users to the right tenant or enabling company-based onboarding

Practical recommendation

If you’re building a B2B product, a good baseline is:

• Support Google login
• Support Microsoft login
• Have a path for enterprise SSO via OIDC/SAML
• Optionally add SCIM later for provisioning

That gives you coverage for most business customers without overbuilding.

Rule of thumb

• SMB SaaS: Google login is helpful, not always required
• Mid-market / enterprise SaaS: Google Workspace support is usually expected
• Enterprise-only: support multiple IdPs, not just Google

If you want, I can help you decide based on your specific product and target customer segment.