# Sign in with Google: Access blocked: This app’s request is invalid **URL:** \ **Category:** Uncategorized\ **Created:** [January 6, 2026, 5:38pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945 "2026-01-06T17:38:59Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jhaaaa](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/jhaaaa/32/405_2.png) [@jhaaaa](https://dashboard.literatecomputing.com/u/jhaaaa)\ **Post date:** [January 6, 2026, 5:38pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/1 "2026-01-06T17:38:59Z")
Hi there @pfaffman - A user tried to sign in with Google yesterday and let me know they are getting this error. I logged out and tried to get back in via sign in with Google and am getting the same error: ![CleanShot 2026-01-06 at 09.17.01](https://s3.pfaffmanager.com/sites/dashboard/original/1X/c6eeca4ff81aaf653ef9eca31c69555e693e3598.png) When I click error details, this is what I get: > Error 400: redirect\_uri\_mismatch > You can’t sign in to this app because it doesn’t comply with Google’s OAuth 2.0 policy. > If you’re the app developer, register the redirect URI in the Google Cloud Console. > > Request details: redirect\_uri=[XMTP Improvement Forum](https://improve.xmtp.org/auth/google_oauth2/callback) flowName=GeneralOAuthFlow Can you help us get sign in with google working again, please? Thank you! J-Ha ---
**Author:** ![jhaaaa](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/jhaaaa/32/405_2.png) [@jhaaaa](https://dashboard.literatecomputing.com/u/jhaaaa)\ **Post date:** [January 8, 2026, 8:14pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/2 "2026-01-08T20:14:41Z")
A friendly ping on this one, @pfaffman - any thoughts on this? Thank you, as always! ---
**Author:** ![pfaffman](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/pfaffman/32/7_2.png) [@pfaffman](https://dashboard.literatecomputing.com/u/pfaffman)\ **Post date:** [January 8, 2026, 8:17pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/3 "2026-01-08T20:17:12Z")
You changed the URL of your site, so you need to update the Google App with the new URL. > **[Configure Google login for Discourse](https://meta.discourse.org/t/configure-google-login-for-discourse/15858)** > > 🔖 This guide explains how to set up Google login integration for your Discourse site by configuring OAuth2 credentials in the Google Cloud Console. 🙋 Required user level: Administrator Overview Google login allows users to sign in to your... You need to add the callback and url to the google config ---
**Author:** ![jhaaaa](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/jhaaaa/32/405_2.png) [@jhaaaa](https://dashboard.literatecomputing.com/u/jhaaaa)\ **Post date:** [January 20, 2026, 5:13pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/4 "2026-01-20T17:13:44Z")
@pfaffman Just wanted to share the fix that finally resolved this, if helpful for the future - our Google OAuth client secret and ID went inactive for some reason. As soon as I updated them with new ones in Discourse - Sign In with Google started working again. 🤷‍♀️ Hope all is well! J-Ha ---
**Author:** ![pfaffman](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/pfaffman/32/7_2.png) [@pfaffman](https://dashboard.literatecomputing.com/u/pfaffman)\ **Post date:** [January 20, 2026, 5:15pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/5 "2026-01-20T17:15:43Z")
If it’s working, it’s working, but the error you showed was because the hostname changed. Perhaps someone added the new host name and callback as well. Also, it doesn’t work for me, but maybe it’s not supposed to? ![image](https://s3.pfaffmanager.com/sites/dashboard/original/1X/5cb5c56316fe11a0860ccecb0555d3894e06ce95.png) ---
**Author:** ![jhaaaa](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/jhaaaa/32/405_2.png) [@jhaaaa](https://dashboard.literatecomputing.com/u/jhaaaa)\ **Post date:** [January 20, 2026, 5:41pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/6 "2026-01-20T17:41:09Z")
We added a new host name and callback – and it didn’t work. Then we added this and it worked - so maybe the combo as you suggest! But oh no! It should work for anyone who wants to use Sign in with Google! Back to the drawing board! 🤦‍♀️ ---
**Author:** ![pfaffman](https://cdn.dashboard.literatecomputing.com/user_avatar/dashboard.literatecomputing.com/pfaffman/32/7_2.png) [@pfaffman](https://dashboard.literatecomputing.com/u/pfaffman)\ **Post date:** [January 20, 2026, 5:54pm UTC](https://dashboard.literatecomputing.com/t/sign-in-with-google-access-blocked-this-app-s-request-is-invalid/1945/7 "2026-01-20T17:54:24Z")
> [@jhaaaa](#): > > We added a new host name and callback – and it didn’t work Aha! So that was necessary, but not sufficient. > [@jhaaaa](#): > > But oh no! It should work for anyone who wants to use Sign in with Google! Back to the drawing board! 🤦‍♀️ > I think this: > [@](#): > > - Go to Google Developer console ([https://console.cloud.google.com/apis/credentials/consent?project=XXX](https://console.cloud.google.com/apis/credentials/consent?project=XXX)), to the Google Auth Platform / Audience page. > - Change User Type to External