Best Practice Guide for Veeam Backup for Microsoft Office 365 V5
https://bp.veeam.com/vbo
Official Veeam VBO Sizer:
https://calculator.veeam.com/vbo/
System Requirements:
https://helpcenter.veeam.com/docs/vbo365/guide/vbo_system_requirements.html?ver=50
Installation of Veeam Backup for Microsoft Office 365:
https://helpcenter.veeam.com/docs/vbo365/guide/vbo_installing_vbo.html?ver=50
Original post link: https://community.veeam.com/discussion-boards-66/veeam-backup-for-office-365-best-practice-guide-574?postid=2646#post2646