When authorizing my own Apps Script project from its original consumer Google account, Google displays “This app is blocked.” There is no Advanced, Allow or Continue control, and no technical error code is shown.
The script uses its Google-managed Default Cloud project. Its listed OAuth scopes contain only:
https://www.googleapis.com/auth/spreadsheets
One further authorization attempt with the same original account and project produced the same hard denial. I have stopped retrying.
I understand that sensitive scopes can require OAuth review. However, the documented unverified-app flow appears different from this non-continuable denial, so I do not know which restriction applies here.
What supported diagnostic information or Google review/escalation route can identify the applicable restriction for this original Apps Script project? I want to preserve account protections and resolve the original authorization, without changing identity or substituting another project to evade the block. If account-specific information is necessary, which official private support channel should receive it?