# Google OAuth "Access blocked: nylas.com has not completed verification" - Test users not working with Hosted Auth **URL:** \ **Category:** Question and Answers\ **Tags:** email-api, authentication\ **Created:** [August 29, 2025, 6:03pm UTC](https://forums.nylas.com/t/google-oauth-access-blocked-nylas-com-has-not-completed-verification-test-users-not-working-with-hosted-auth/888 "2025-08-29T18:03:42Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![connekt](https://avatars.discourse-cdn.com/v4/letter/c/898d66/32.png) [@connekt](https://forums.nylas.com/u/connekt)\ **Post date:** [August 29, 2025, 6:03pm UTC](https://forums.nylas.com/t/google-oauth-access-blocked-nylas-com-has-not-completed-verification-test-users-not-working-with-hosted-auth/888/1 "2025-08-29T18:03:42Z")
Hi Nylas Team, I’m experiencing an issue with Google OAuth integration using Nylas Hosted Auth where test users are getting blocked even though they’re properly configured in Google Cloud Console. **Problem:** When using Nylas hosted authentication (/v3/connect/auth), users get “Access blocked: nylas has not completed the Google verification process” error, even though: • The user is added to Google Cloud Console test users list • My Google project is in “Testing” mode • Direct Google OAuth (bypassing Nylas) works fine with the same user **OAuth Flow Analysis:** Step 1 - Initial Nylas auth URL: ```auto https://api.us.nylas.com/v3/connect/auth?client_id=bb429b1d-eb75-4e6e-954c-acf21628b5a3&redirect_uri=https%3A%2F%2Fapi.letsconnekt.com%2Fapi%2Fv1%2Fcommunication%2Fgoogle%2Fcallback&provider=google&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fgmail.modify ``` Step 2 - Google OAuth URL (shows my client\_id correctly): ```auto https://accounts.google.com/o/oauth2/v2/auth/oauthchooseaccount?client_id=570849226519-bsdmaiflpi56sgd1ic58qbp64lg4prn5.apps.googleusercontent.com&redirect_uri=https%3A%2F%2Fapi.us.nylas.com%2Fv3%2Fconnect%2Fcallback ``` Step 3 - Results in error: “Access blocked: [nylas.com](http://nylas.com) has not completed the Google verification process” **My Configuration:** Google Cloud Console: • Publishing status: Testing • User type: External • Test user added and verified • Authorized redirect URIs include both: - p[[api.us.nylas.com/v3/connect/callback](http://api.us.nylas.com/v3/connect/callback) - [my-api-domain]/api/v1/communication/google/callback • Scopes: `gmail.modify, userinfo.email, userinfo.profile, openid` Nylas Configuration: • Client ID: `bb429b1d-eb75-4e6e-954c-acf21628b5a3` • Region: `US (api.us.nylas.com)` • Redirect URIs configured in the dashboard **What Works:** • Google OAuth Playground with same client\_id works fine • Direct Google OAuth (bypassing Nylas) works with same test user • Issue ONLY occurs with Nylas hosted auth **Key Questions:** 1. Does Nylas use its own Google project internally that needs verification? 2. How should Google “Testing” mode work with Nylas hosted auth? 3. Is direct OAuth integration recommended for development instead? 4. Any additional setup needed for test users with hosted auth? **Observations:** - Error specifically mentions “nylas has not completed verification” - OAuth flow shows my Google client\_id correctly - Redirect URI switches from my callback to nylas callback - Suggests Nylas might use internal OAuth app **Environment:** - Nylas API v3 - Node.js backend - Region: US - Blocking development/testing workflow Screenshots attached showing error flow and configuration (sensitive data redacted). Any guidance would be greatly appreciated! Thanks! ![Screenshot 2025-08-29 at 6.46.49 PM](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/821aee89d526756fe75ee3630588ea26467c1ec8.png) ---
**Author:** ![connekt](https://avatars.discourse-cdn.com/v4/letter/c/898d66/32.png) [@connekt](https://forums.nylas.com/u/connekt)\ **Post date:** [August 29, 2025, 6:06pm UTC](https://forums.nylas.com/t/google-oauth-access-blocked-nylas-com-has-not-completed-verification-test-users-not-working-with-hosted-auth/888/2 "2025-08-29T18:06:00Z")
Also, Here is the Nylas Hosted Authentication page Screenshots on which it includes my web application redirect URI ![Screenshot 2025-08-29 at 10.46.09 PM](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/74e6b69b7468a896165fb6030279eca6f7d29d37.jpeg) ---
**Author:** ![connekt](https://avatars.discourse-cdn.com/v4/letter/c/898d66/32.png) [@connekt](https://forums.nylas.com/u/connekt)\ **Post date:** [August 31, 2025, 3:39pm UTC](https://forums.nylas.com/t/google-oauth-access-blocked-nylas-com-has-not-completed-verification-test-users-not-working-with-hosted-auth/888/3 "2025-08-31T15:39:20Z")
Hi @winona, Could you please have a look at this issue and let me know how I can resolved this issue. Thanks. ---
**Author:** ![akay](https://avatars.discourse-cdn.com/v4/letter/a/c37758/32.png) [@akay](https://forums.nylas.com/u/akay)\ **Post date:** [October 31, 2025, 6:51pm UTC](https://forums.nylas.com/t/google-oauth-access-blocked-nylas-com-has-not-completed-verification-test-users-not-working-with-hosted-auth/888/4 "2025-10-31T18:51:20Z")
Hey @connekt I wanted to check in to see if you’re still running into this issue or if it’s been resolved? Is this your own GCP app? If so can you confirm you added the test users while it’s in “testing” mode?