Why do I see different branding on Google OAuth consent screens with Nylas?

The branding you see on Google OAuth consent screens depends on your Google Cloud Platform (GCP) project configuration and verification status:

Internal GCP Projects When your GCP project is set to "Internal" user type, users may see an "Your GCP App Name" warning screen. 

External GCP Projects (Unverified) When your GCP project is set to "External" but hasn't completed Google's verification process, users will see:

• "Choose an account to continue to nylas.com" instead of your domain
• Google's unverified app warning screens
• Limited custom branding display

External GCP Projects (Verified) Once your external GCP project completes Google's verification process:

• Users see "Choose an account to continue to [your-domain.com]"
• Your custom app name, logo, and branding display properly
• No unverified app warnings appear

Resolution Steps

1. Ensure your GCP project is set to "External" user type (not Internal)
2. Complete Google's verification process for your required scopes
3. Configure proper OAuth consent screen branding in your GCP project

Important Notes

• The verification process can take several weeks
• Internal projects should only be used for testing within your organization
   

Related Resources

• Creating a Google auth app — Step-by-step guide for creating and configuring a Google Cloud Platform application, including internal vs. external configuration and OAuth consent screen setup
• Google verification and security assessment guide — Complete guide to Google's verification process, including timelines, scope requirements, and security assessments
• Customize branding in Nylas Hosted Authentication flow — Configure your own logo and custom domain (CNAME) to replace Nylas branding in the OAuth flow
• Bring Your Own Authentication — Handle OAuth in your own project to display your company branding instead of "Nylas" on consent screens
• Using Google accounts and data with Nylas — Overview of Google provider setup, including the Nylas Shared GCP project option
• Creating grants with OAuth and API key — Implement Hosted OAuth authentication flow with Nylas
• Configuring the OAuth login prompt — Customize the login experience using provider and prompt parameters