Gmail app keeps asking for Microsoft account credentials - not able to login

Its been 6 months. Anyone find a solution yet?

I've been experiencing the same issue for months and still no resolution. I'm using an "app password" which seems to sync some of the time but sync periodically fails for no reason and throws me to the authentication page. The option "Switch to Modern Authentication" fails.

Is there any hope of a root cause analysis and proper resolution from Google or Microsoft? Mail, calendar and contact sync have been working perfectly for years and OAuth 2.0 authentication is quite mature.

Very glad to hear I'm not alone! I think it's probably up to Google to fix this by implementing so-called "Modern Authentication" properly.

Anyway, frustration drove me to install Outlook for Android (which may have been Microsoft's intention all along...)

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I still hope that is is not their intention - I mean to disable Contact and Calender Sync.

What is Microsoft doing here - and why is it not reacting about it?

It's a ploy to make you use Microsoft Apps... and until the EU or US take action for anti competitive behaviour they are going to hide behind the "security issue".. Bollocks

we were all using Basic authentication in the gmail app to talk to our hotmail accounts via activesync. activesync is what an enterprise Microsoft Exchange account would use, including calendar, contacts, etc.

1. _microsoft_ has decided to disable "basic" authentication for hotmail accounts and now requires "modern" authentication. because it's 2024.
2. _google_ has decided (a few years ago) that the only way the gmail app can connect to a hotmail account using modern authentication (by selecting 'outlook, hotmail, or live' when setting up a new account in the gmail app) is via IMAP, not via activesync. imap is an email-only technology invented in 1986. no calendars, no contacts. "modern" indeed.

since we can all see that "exchange" is an option when setting up a new mail account in the gmail app, we know that google knows perfectly well how to get the gmail app to talk to Microsoft Exchange ActiveSync servers using modern authentication. google has to do this, because so many big corporation$ use Exchange ActiveSync. guess what else runs on micrososft exchange activesync servers? hotmail/outlook. all google has to do is one or both of the following:

A. let us choose "exchange" and then put our hotmail addresses in, instead of blocking us and saying "go back and choose outlook, hotmail, or live instead"

B. let the "outlook, hotmail, or live" option" use activesync instead of imap.

pro-tip: the built in email app on every android or apple phone you've had for the past 5-10 years (maybe longer) does B.

but google won't let us do either of these things in the gmail app. google is actively, purposely choosing not to let us use activesync for free hotmail/outlook accounts. because if you're going to be using a free email/contact/calendar service, google wants that service to be their service. not microsoft's service. so the gmail app is going to offer a superior experience with a gmail account than it does with a hotmail account.