Hi ! There's currently an issue with google OAuth2...
# support-questions-legacy
u
Hi ! There's currently an [issue](https://issuetracker.google.com/u/1/issues/211370835?pli=1) with google OAuth2 that prevents controlling test user access. Is there an easy way to block social sign up from supertokens back end ?
r
Hey! Yea. You can override the signInUp recipe function on the backend and throw an error in case the input email is a test user.
u
okay nice thanks, found the page in the docs
r
Cool!
u
I was originally looking for the typescript autocompletion of the
originalImplementation
arg but didn't see much, but it's because there's a missing type in there
r
The type should be automatically inferred by typescript
If that’s not happening, then something else is wrong. Can I see your entire code snippet?
u
sure
r
Ahh right. SignInUp is not in the apis section. It’s in the functions section, which is adjacent to the apis config
Check the docs -> advanced customisation -> backend function override
u
ah ok my bad
r
Hope this helps 🙂
u
thanks for the lightning quick support again