Accidental attachment upload filling up space
I have by accident started uploading attachments to the Zotero online storage, which quickly filled up my quota. How can I delete attachments only from the server, which keeping everything else (all the references) synced?
Settings--> Storage --> Purge Storage
If you don't want any attachments uploaded.
Edit: note that the storage for your data is independent of file storage - even with your quota full, your data will continue to sync.