Hi. For a business customer, how could I limit to 15 GB the max. file size to upload/download/sync for all users (desktop app or web), please? Maybe using sdk? Nothing found in Internet after a lot of time searching....
Not aware of any feature that can do this, but I will move to the API forum incase they've a creative idea
Dropbox and the Dropbox API don't offer anything exactly like this, but the closest would be the ability for teams to set custom quotas for team members, which is also configurable using the API.
Developers can write their own constraints into their apps though, so for example if you're a developer using the Dropbox API/SDK and the users exclusively use your app to interact with Dropbox, you could enforce that limit in your app's own code, but that wouldn't prevent larger files from being uploaded using other means.