Linking Outlook calendar to Apple calendar

Hello everyone,

I have recently switched from Android to iPhone 12 so I am still learning how everything works. I want to have all my calendars on the apple calendar app (iCloud, Gmail and Outlook). For work, I have an Outlook account (through an Office 365 account), but when I go into settings > Calendar > Add account, choose Outlook and enter my email address it tells me "this account does not exist".

Is there another way or am I doing something wrong ? Or is it just not possible?

Thank you in advance for your help!