As time goes by, the amount of storage your tenant uses increases. In general, that's a good thing: it means people are using the platform to get their work done. But it also means you may be running out of space.

There are a number of things you can do to:
* Help you understand where your storage in being used
* Clean up older or stale content to gain space back
* Change versioning settings to reduce storage consumption, but safely
* Purchase additional storage
* Archive older content to reduce storage costs