I've had a Google drive file shared with a non Google email account (that I traditionally access via outlook). When I click the link, my browser (which is logged in to my google account) tells me that I need permission.
I try signing out of that Google account in my browser, and following the link again, but just get asked to sign in. Of course, I can't with the relevant account as it's not a Google account..
I've now tried adding the non-google email as an 'associated email' to my Google account, but I still get told that I need permission.
Any suggestions how to access this file? Unfortunately getting it re-sent to my Google account is not an option.