How do I access multiple O365 Mailboxes under one login

Client Configuration:

3 Admin and 12 Sales Staff

Client would like each admin to access their mailbox Plus 3 other sales mailboxes

Using the Chrome email browser with only one login.

I have tried to setup multiple users under the People tab as explained here:

When I attempt to setup one of the O365 accounts it tells me that it is not a valid account as shown here:

     "Sorry, Google doesn't recognize that email."

How do I setup my O365 Accounts in Google Chrome and I can switch from account to account without entering a password?

Thank You

Joseph SalazarVice President - Senior IT ConsultantAsked:
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Vasil Michev (MVP)Commented:
Grant Full Access permissions to the relevant people, then when you are logged in to the Outlook Web App, press on your picture, select Open another mailbox, type in the name of the other mailbox.
Joseph SalazarVice President - Senior IT ConsultantAuthor Commented:
Yep Vasil, Did that also followed steps mentioned here:

Works Great !!!!!

My client wishes to have it work in Chrome like Google mail does when you click on the user Icon and switch user....

Not to Open Separate Tabs

How can I make this happen???

We are both on the right path and are only one step away

Vasil Michev (MVP)Commented:
Your client should understand that O365 is NOT google mail. Doesnt work like that.

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Joseph SalazarVice President - Senior IT ConsultantAuthor Commented:
then how does this guy get it to work here:

Vasil Michev (MVP)Commented:
And where exactly did you saw a "switch user" behavior in that thread? You either open the mailbox via the Open another mailbox functionality, or via right-clicking on your name in the left navigation pane and selecting "add shared folder". Then the other mailbox will appear in the left navigation pane. But there's no 'switch user' behavior.
Joseph SalazarVice President - Senior IT ConsultantAuthor Commented:
Wow Vasil,

You are right I posted the Wrong Link Sorry about that..

Here it is:

I am attempting to duplicate what is shown here:

Vasil Michev (MVP)Commented:
Right. Well this should work for normal accounts, but you cannot login to a shared mailbox directly.
Joseph SalazarVice President - Senior IT ConsultantAuthor Commented:
Hi Vasil,

I have sent an email to the Author of the Posting to request just how he setup the O365

Users to work in Google Chrome as shown in his article.

I am a firm believer if someone can think it up there is another who can make it happen.

I will post his answer here when he Responds.

***Please Remove the Neglected Notification on this Thread ***

If we find a solution we will be *** HEROES ***

Joseph SalazarVice President - Senior IT ConsultantAuthor Commented:
After Exhaustive Requests to obtain the configuration the Article  Writer has failed to return both my Calls and emails.

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