Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Heidi.hendry.foxblue.net,
We are Microsoft forum support. If you have any questions when you use Office 365 for Business Online services, you can post on our forum. We are always here to assist you.
Back to troubleshoot this issue. After reviewing the whole thread, I learn that you want to use the Outlook desktop client such as Outlook 2013, 2016, etc. However, you don’t have Office 365 ProPlus licenses. If so, it’s not feasible to use it. As you said before, you can only use Office 365 Online services.
To confirm if your Office 365 subscription includes an Office 365 ProPlus license, could you send me your Office 365 email address via private message, so I can help you to check it?
I have sent you a private message. Please click on the link below to access it
https://community.office365.com/user/conversations
Best Regards,
Toby