Microsoft 365 gives teams three places to store files: OneDrive, Teams, and SharePoint. Each one has a purpose, and understanding which to use and when removes a lot of confusion about where things are and who can access them.
Draft in OneDrive
OneDrive is your personal work storage. Files you are actively working on but are not yet ready to share belong in OneDrive. Think of it as your desk drawer rather than a filing cabinet: accessible to you, private by default, and suited for work in progress.
When you create a new document in Word, Excel, or PowerPoint and save it to OneDrive, only you can see it unless you explicitly share it. This is the right behaviour for drafts, personal notes, and files you are preparing before they are ready for team review.
Collaborate in Teams
When a file needs to be worked on by multiple people, move it into a Teams channel. Files shared in a Teams channel are stored in SharePoint behind the scenes, but the Teams interface makes them easy to access, edit simultaneously, and keep connected to the relevant conversations.
Uploading a file to a Teams channel and then @mentioning a colleague in the channel message is a much cleaner workflow than emailing attachments. The conversation, the file, and the people involved are all in one place.
Share via SharePoint
Completed, stable files that the team or organization needs ongoing access to belong in SharePoint. This includes policy documents, templates, reference materials, and published versions of projects. SharePoint is designed for organized, structured storage that many people can access based on clear permission levels.
SharePoint also handles external sharing more cleanly than OneDrive for most business use cases. Sharing a folder from a SharePoint document library gives external partners or clients controlled access to exactly what they need, with the ability to revoke access cleanly when the work is done.
Practical Guidelines for Your Team
- Use consistent folder structures and naming conventions across your SharePoint libraries so files are findable by people who did not create them
- Avoid saving files to your local hard drive if they need to be accessible to others or backed up automatically
- Use the "Files" tab in Teams channels as your primary access point for project-related documents
- When in doubt about where to put something, ask whether it is personal, collaborative, or organizational and use that to decide between OneDrive, Teams, and SharePoint accordingly
The system works best when everyone on the team uses it consistently. A short onboarding session explaining these three zones, what goes where and why, reduces the "where did that file go?" questions that slow down every team that does not have a clear approach.