A user experienced the following problem when attempting to login to the app using a gmail account. Unexpectedly gave an Access blocked authorisation error. More worrying it that the message went onto say the app doesn’t comply with Google’s secure browser policy, which is strange since the AppSheet platform is owned by Google. 
Any ideas? The user had previously been able to login without any issues.
403 disallowed_useragent
I cannot access the links as the it was a screenshot and I am not near where there user is. 
Did you solve it? @Harriswe
am having this same issue with a student trying to sign into ADobe creative cloud authenticating with their school google account. Here is what error details contains:
Error 403: emm_app_verification_required
Request details: response_type=code code_challenge_method=S256 nonce=kh3cCQ3eV473PsAACXDS2Vg450EZr5HwpFXxklt3_VY device_os=iPadOS 17.2 client_id=1096177061311-tg6u3th20k8tbq1feeapadofchb0sen0.apps.googleusercontent.com emm_support=1 gpsdk=gid-6.2.4 gidenv=macos-ios state=-uWIZvLDfZtXXg_XGW7G_V1n-KIFBEfzC1AW3vrq8zI redirect_uri=com.googleusercontent.apps.1096177061311-tg6u3th20k8tbq1feeapadofchb0sen0:/oauth2callback code_challenge=EN-XXjOUoEnMPi4t1P4FraNAd5aVfT19Bno4adi-c_Y include_granted_scopes=true access_type=offline scope=https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/userinfo.profile openid flowName=GeneralOAuthFlow
Is this AppSheet-related?
good point, no, sorry! Lol, I did not realize this was about app sheet and i should have read more thoroughly!