Office 365 Best Practices guide for users.
Is there an Office 365 Best Practices guide for users? I work at a technical college and we are apart of an Office 365 Education tenant and a user couldn't click on the File Attachment button and show a recently used list of attachments. The list kept disappearing. I had the user log out of her Microsoft account in Outlook. She then closed Outlook and logged in again with her Microsoft account. She opened Outlook and her list appeared again when clicking the File Attachment button. Should users signed out of their Office 365 accounts periodically?